Difference between revisions of "User:Elgavachon/Sandbox"

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=='''Una Charla: El angulo del drill y el angulo del val'''==
+
==<big>Seven Steps for Calculating a Benchmark Layout:</big>==
 +
A guide for finding benchmark layouts from combined Dual Angle Ratio Guide & from Dual Angle Sweet Spot Guide (wiki articles.)
  
El '''drill''' mas el '''val''' = la distancia '''total''' que viaja la bola hasta llegar a la etapa rodadera.(3a etapa)...= '''Suma Total'''
+
You will need to find the bowler's specs (there are many techniques and videos available in the wiki).
 +
*ball speed [[Measure_Ball_Speed|How to measure ball speed]]
 +
*rev rate [[Measure_Rev_Rate|How to measure rev rate]]
 +
*axis tilt [[axis_tilt|axis tilt]]
 +
*axis rotation  [[Axis_rotation|axis rotation]]
 +
# to find Benchmark Total Sums.
 +
# to find a Benchmark Ratio.
 +
# to choose a Pin to PAP distance
  
'''La Suma Total''' tendra un '''(+or- grados).'''
 
  
*'''Sumandolos''' a la "suma total" = bola viaja '''larga''' distancia hasta llegar a la etapa rodadera.
 
  
*'''Quitandolos''' de la "suma total" = la bola viaja menos distancia hasta la etapa rodadera.
+
.
  
 +
==Find Your Benchmark Total Sums ''(primarily using speed/rev relationship)''==
 +
==='''<u>Step #1</u>- Determine the Initial Sums of angles''' ''(drilling angle + VAL angle)''.===
 +
Start your calculations by finding the relationship between ball speed and rev rate.  An example of a well matched bowler would be 17mph speed and 300rpm (off the hand).  For each 1mph increase or decrease in speed, a corresponding increase or decrease of about 50rpm would stay matched.
 +
Bowlers who are speed/revs matched would start their calculations with 95* of sums.
 +
[[:Image:BallSpeedvsRevRate.JPG|Link Text]]
  
*El angulo del '''drill''' determina la larga de la '''primera etapa'''. (distancia del patinazo)
+
'''Rules of thumb''':
  
*El angulo del '''val''' determina la larga de la '''etapa de la curvacion'''. (distancia entre la etapa del patinazo hasta la etapa rodadera)
+
*   For the first 50 revs of imbalance ''(in excess)'', add 10* to the Total Sums.
  
 +
*    For the first 1 mph of speed imbalance ''(in excess)'', subtract 10* from the Total Sums.
  
Para la mesa '''seca''' o con aceitada corta, '''anadimos''' grados a la "suma total".
+
If the speed/revs imbalance is <u>extremely</u> high or low, you would add or subtract extra sums to compensate accordingly. The amount of sums you add or subtract is not linear ''(for the second 50 revs of imbalance, you will add or subtract less than 10*, etc.)
 +
''
  
'''Ejemplo:''' Usando 100* suma total (+o-20*) Usamos 120*.
+
==='''<u>Step #2</u>-Adjust Initial Sums''' ''(off from step #2 for very high or very low tilt & rotation)''.===
 +
Mo will also lower the sum of angles for bowlers with very high tilt & rotation, or raise the sum for bowlers with very low tilt & rotation.
  
*<u>La '''proporcion fuerte''' =  movimiento ''largo y rapido/ abrupto'''' llegando al seco</u>
+
For these tilt adjustments, we are using '''13* to 17*''' of tilt as the normal tilt range.
  
*<u>La '''proporcion suave''' = movimient con mas '''continuacion ''' </u>
+
For these rotation adjustments, we are using '''45*  to 60*''' of rotation as the normal rotation range.
 
  
 +
'''Rules of thumb:'''
  
Para la mesa '''resbaloza''' o con aceitada larga, '''quitamos''' grados de la "suma total".
+
* Lower totals by about 10° for high tilt
 +
* Raise totals by about 10° for low tilt
 +
* Lower totals by about 5° for high rotation
 +
* Raise totals by about 5° for low rotation<br><br>
  
'''Ejemplo''' Usando 100* "suma total" (+o-20*). Usamos 80*
+
If the tilt or rotation is <u>extremely</u> high or low, you could add or subtract extra sums to compensate accordingly.
  
*<u>La '''proporcion fuerte''' = un movimiento muy '''definido/abrupto'''</u>
+
==='''<u>Step #3</u>-Understanding Sums of the <u>Benchmark Range</u> ''''' (neccessary for calculations)''===
 +
The Benchmark Range is necessary for adjusting other layouts off from the benchmark layout so the bowler will not have to change their specs when playing various conditions (Long & Strong layout/Control layout/Mid-lane layout/Totally Strong layout/ etc).
  
*<u>La '''proporcion suave''' = un movimiento '''temprano con continuacion '''(mid-lane)</u>
+
'''''Total sums (drilling angle + VAL angle) determines the length of ball motion until the roll phase.''''' ''(See: [[Three_Phases_of_Ball_Motion|Three Phases of Ball Motion]])''
  
=='''Son 4 Pasos Necessarios para hallar tu proporcion personal '''==
+
Note: The total sums of your sweet spot will include a '''(+ or - of degrees)''' which is the <u>benchmark range</u>.
 +
# ''Adding'' these degrees to your total sums will add length to the ball motion. ''(increasing total length of ball motion before reaching the roll phase)''
 +
# ''Subtracting'' these degrees from your total sums will decrease the length of ball motion.
  
'''PASO #1''' es de encontrar la '''"Inclinacion Inicial".'''
+
*± 30° for elite bowlers
 +
*± 20° for good bowlers
 +
*± 10° for average bowlers<br><br>
 +
     
 +
====Example====
 +
Sweet spot of <u>100º sums</u> using '''(± 20º)''' for this example.
  
'''PASO #2''' es de modificarla por la rotacion a la '''"Inclinacion Final"'''
+
For dry or short oil patterns to increase length, use <u>120º sums</u>.
 +
*Use a high ratio for ''<u>long and strong layouts</u>''... ''(longer and quicker reaction to the dry...more of a skid /snap ball motion)''.
 +
*Use a low ratio for ''<u>control layouts</u>''...''(slower/smoother reaction to the dry)''
  
'''Paso #3''' es de hallar la '''"Proporcion Maxima"''' y la '''Proporcion Minima'''
+
For oily or longer patterns to decrease length, use <u>80º sums</u>. ''(utilizing ratios to achieve the desired break shape)
 +
*Use a high ratio for ''<u>Totally Strong Layouts</u>''... ''(defined/sharp motion...quicker reaction to the dry)''
 +
*Use a low ratio for ''<u>mid-lane layouts</u>''...''(earlier/slower reaction to the dry...smoother & more continuous ball motion.)''
  
'''Paso #4''' es de calcular la '''"Matematica'''.
+
.
  
=='''(PASO #1) Tienes que hallar la proporcion del "drill angle" al "val angle"'''==
+
==Find Your Benchmark Ratio ''(by primarily analyzing tilt and rotation)''==
 +
'''''This is necessary to accurately calculate the drilling angle and the val angle individually.'''''
  
Hallar la '''"Proporcion Inicial"''' usando el grafico de Athery.(la columna de en medio)"initial ratio" o "inclinacion inicial"
+
For examples on how to do the math, see ''[[Dual_Angle_Ratio_Guide#Simple Math Examples|simple math examples]]''.
  
  
'''(Por inclinacion abajo de 7*)'''
+
==='''<u>Step #4</u>-Find The Initial Ratio From Axis Tilt'''===
 
+
The middle column (''initial ratio benchmark range'') gives approximate ratios for bowlers with ''speed/revs = matched + normal rotation.''
*Si tienes <u>rotacion baja</u> tienes que usar el grafico de Athery.  
+
 +
Please note: when creating the chart we used 50º to 55º as normal axis rotation. (45º is slightly low and 60º is slightly high)
  
* Si tienes <u>rotacion alta</u> , tienes que usar otro PDF que se encuentra abajo del grafico de Athery (en esta misma pagina).
+
*For ''[[axis_tilt|axis tilt]]'' below 7º (especially when accompanied by high rotation) use this [[:File:Decrease_low_tilt_on_Athery%27s_chart.pdf|PDF chart]].
 
+
*For ''[[axis_tilt|axis tilt]]'' below 7º accompanied by low rotation use the chart below:
*Nota: 45* y menos = rotacion baja..... y 60* o mas = rotacion alta.
+
*For low ''[[axis_tilt|axis tilt]]'' with very low revs use the chart below (even with high rotation):
 
+
''Chart created by Athery''
(el grafico fue hecho por Athery)
 
 
[[File:Ratiochart.png]]
 
[[File:Ratiochart.png]]
  
 +
'''Special notes for axis tilt below 7º:'''
 +
With low tilt, the rotation seems to effect the ratios a lot more than with medium tilts. A high rotation will decrease them a lot (what Mo calls ''PDW territory'') and a low rotation will significantly raise them. There is more of an extreme adjustment comparitively.
 +
The ratios increase as the tilt decreases until you reach below 7º to 10º; below that the ratios decrease. Part of the reason is because the maximum drilling angle is 90º and with low tilt, you need ratios which will take the ball down the lane.
 +
Here is a [[:File:Decrease_low_tilt_on_Athery%27s_chart.pdf|PDF chart]] on how to adjust Athery's chart, especially when low tilt is accompanied by high rotation.
  
(Pica lo de abajo para hallar el PDF de '''MENOS DE 7* (especialmente con alta rotacion).'''
+
==='''<u>Step #5</u> - Adjust the Initial Ratio '''''(from Step #4 If bowler has high or low rotation)''===
 
+
'''Amount of adjustment necessary depends on the relationship between rotation and ball speed.'''
 
+
*High rotation and/or high rotation accentuated with speed dominance = ''decreased ratios'' (use boxes further right on the chart)
[[:image:Decrease_low_tilt_on_Athery%27s_chart.pdf|Low tilt chart]]
+
*Low rotation and/or low rotation accentuated with rev dominance = ''increased ratios'' (use boxes further left on the chart)
 
 
 
 
[[Category: Layouts]]
 
 
 
=='''(PASO #2) Tenemos que Modificar la "Inclinacion Initial por la rotacion"'''==
 
 
 
 
 
A este proporcion le diremos '''"Proporcion Final"''' ''(Lo hallamos ajustando la proporcion inicial hacia la izqierda o hacia la derecha en el grafico)''
 
 
 
*Ajustamos por '''rotacion alta '''...''moviendo desde la "proporcion inicial" hacia derecha.(una quadra por rotacion poca alta y mas con mucha velocidad demas.)
 
 
 
*Ajustamos por '''rotacion baja'''...''moviendo desde la proporcion inicial'' hacia la izqierda.(una quadra por rotacion poca baja y mas con muchos revoluciones demas.)
 
 
 
*Mayor ajusto es necesario si la rotacion es extremamente alta o baja (expecialment acompanada con velocidad extrema o revoluciones extremas)
 
  
 +
==='''<u>Step #6</u> - Find The Ratio ''<u>Range</u> '''''(for calculating Long & Strong/Control/Mid-lane/Strong oil/Etc. layouts)''===
  
 +
The maximum ratio and minimum ratio (drill angle and val angle) which should be utilized with your personal sweet sums is defined as your ''ratio range''. This is how far you can deviate your ratio both higher and lower from your benchmark ratio. It can be calculated by choosing boxes left and right of your chosen ratio on the chart above. Mo very seldom gives an extremely large ratio range. It is more common with very low or very high tilt. A +/- of around 0.5 above and 0.5 below benchmark ratio seems to be close to the average ratio range.
 +
 +
You need to determine your personal '''<u>''Ratio Range''</u>''' to use in conjunction with your '''<u>''Total Sums Range''</u>''' to accurately calculate layouts for your personal specs or sweet spot.
  
=='''(PASO #3) Tenemos que sacar la "Proporacion Maxima" y Minima'''==
+
*Mo frequently uses the lower ratio range for easier THS wet / dry patterns for more control and mid-lane reaction
 
 
 
 
'''Tenemos que hallar la '''"proporcion maxima"''' <u>"fuerte</u>... y la '''proporcion minima'''<u>"suave"</u> para calcular nuestras preforadas completas.'''
 
 
 
Es necesario para calcular las posibilidades de preforaciones.
 
 
 
'''Mo suele usar (+or- .5) de la proporcion final '''...''( o sea, llega a ser cualqiera proporcion entre 2 quadras a la derecha hasta 2 quadras a la izqierda de nuestro proporcion final)'' (podemos usar el grafico de Athery)
 
 
 
 
 
=='''(PASO # 4) Ejemplos de la Matematica'''==
 
 
 
'''Ejemplo:'''
 
 
 
Tenemos "sweetspot" de 90* "suma total" (+or-20*) con proporcion de '''2:1'''
 
 
 
90* con la proporcion 2:1 se calcula asi...2+1='''3'''
 
 
 
90* dividido por 3 ='''30* val angle'''(siempre buscamos el angulo menor usando este metodo)
 
 
 
90* menos 30* es '''60* drill ''' (angulo de drill.)
 
 
 
tenemos '''60* drill  / 30* val '''
 
 
 
 
 
'''Otro ejemplar:'''
 
 
 
Tenemos un "sweetspot de 90* "suma total" (+or-20*) con proporcion de '''1:2'''
 
 
 
90* con la proporcion 1:2 se calcula asi... 1+2=3
 
 
 
90* dividido por 3= '''30* drill ''' (angulo del drill)... ''(siempre buscamos el menor en la proporcion)''
 
 
 
90*-30*= '''60* val''' (angulo del val)
 
 
 
'''30* drill/ 60* val'''
 
 
 
 
 
'''Otro ejemplar:'''
 
 
 
Qieremos preforar lo que Mo llama '''preforacion de "control"'''
 
 
   
 
   
*Para aceitadas faciles (mucho aceite en el medio de la mesa con duelas secas por la orilla)
+
*Mo frequently uses the higher ratio range (a defined break shape) for flatter or more demanding patterns to create a stronger reaction to friction.
 
 
Usamos lo mismo: 90* sumo total (+or-20*) con proporcion de 2:1 '''(+or- .5)'''....o sea
 
 
 
'''2.5:1''' ''proporcion fuerte'' hasta '''1.5:1''' ''proporcion suave''
 
 
 
90 *+ 20* = 110* total
 
 
 
1.5 + 1 = '''2.5'''
 
 
 
110* dividido por 2.5 = 44* '''45* val'''
 
 
 
110* - 45* val = '''65* drill/ 45* val'''
 
 
 
 
 
'''Otro ejemplar:'''
 
 
 
'''Qieremos una preforacion que empieze curvar muy pronto para una mesa aceitada (pero con control)'''
 
 
 
90* suma total - 20* = '''70*'''
 
 
 
1.5 + 1 = '''2.5'''
 
 
 
70* dividido por 2.5 = 28* '''30* val'''
 
 
 
70* - 30* = '''40* drill'''
 
  
Lo que Mo llama una preforacion del "mid-lane" = '''40* drill/ 30* val'''
+
Please note: On ratios less than 1:1, Mo sometimes expresses ratios with the val angle reduced to :1
 +
example: 1:1.25 would be expressed as .8:1 (.8:1=1:1.25, etc.)
 +
# '''Adjust the angles (ratio) for the design of the ball.'''
 +
##Mo will usually raise the ratios on balls which tend to roll early.
 +
##Mo will usually lower the ratios on balls which tend to be skid/flip.
 +
# '''Adjust the angles for the pattern the bowler wants to use the ball on.'''
 +
.
  
 +
==Pin to PAP distance will determine the amount of flare==
  
'''Otro ejemplar:'''
+
==='''<u>Step #7</u>-Choose the Pin to PAP Distance''''' (for desired flare or desired amount of tilt & rotation retention)''===
 +
[[:image:Trackflarechart.JPG|Track Flare Chart]]
  
'''Qieremos una preforacion que para aceite largo pero con un movemiento muy decidido'''
+
'''Track Flare Discussion:'''
  
'''Usando 90* sumo total '''+or- 20*)''' con proporcion de 2:1 '''(+or- .5)''''''
+
High tilt players use Pin to PAP distances of 4 1/2" to 5 3/4" (with Asymmetrical balls)
 +
*4 ½” Pin to PAP distance will make the ball come off the spot hard (more angular)
 +
*5 ¾” Pin to PAP distance will make the ball roll forward sooner<br><br>
  
90* - 20* = '''70*'''
+
Asymmetrical Balls exhibit most flare at Pin to PAP distances of 2 3/4" to 6 1/4"<br>
 +
Symmetrical Balls exhibit most flare with Pin to PAP distances of 3" to 4"<br><br>
  
70* dividio por 2.5 ("proporcion maxima"  
+
Retaining Axis Rotation & Axis Tilt (increase skid, reduce flare):<br>
 +
*To retain Axis Rotation and Axis Tilt in SYMMETRICAL equipment, we would tend towards longer pin-pap (> 4") distances, while ASYMMETRICAL equipment we use shorter pin-pap distances (< 3").
  
2.5 + 1 = '''3.5'''
+
Burning Off Axis Rotation & Axis Tilt (decrease skid, increase flare):<br>
 +
*To burn off Axis Rotation and Axis Tilt quicker in SYMMETRICAL equipment, we would tend toward Max flare pin positions (3" - 4"), while longer pin distances (4"+) in ASYMMETRICAL equipment.  
 +
  .
  
70* dividido por 3.5 = '''20* val'''
+
==Roll the ball==
 +
==='''<u>Step #8</u>-Use Balance Holes''' ''(if desired)''===
  
70* - 20* = '''50* drill'''
+
With some extreme specs, the benchmark layout will include balance holes because the bowler will want balance holes in the majority of their equiptment.
  
'''50* drill/ 20* val'''
+
*Start with a smaller size hole (3/4") at least 2-1/2” deep
 +
*P1 hole = Reduces drilled dynamics
 +
*P2 hole = Maintains drilled dynamics
 +
*P3 hole = Increases drilled dynamics some
 +
*P4 hole = Increases drilled dynamics more
 +
*(This is a very basic interpretation of the Gradient Line Balance Hole technique. Please visit wiki sites for more detailed information.)  http://wiki.bowlingchat.net/wiki/index.php?title=File:Gradient_Line_Hand_Out.pdf <br><br>

Latest revision as of 17:36, 28 November 2013

Seven Steps for Calculating a Benchmark Layout:

A guide for finding benchmark layouts from combined Dual Angle Ratio Guide & from Dual Angle Sweet Spot Guide (wiki articles.)

You will need to find the bowler's specs (there are many techniques and videos available in the wiki).

  1. to find Benchmark Total Sums.
  2. to find a Benchmark Ratio.
  3. to choose a Pin to PAP distance


.

Find Your Benchmark Total Sums (primarily using speed/rev relationship)

Step #1- Determine the Initial Sums of angles (drilling angle + VAL angle).

Start your calculations by finding the relationship between ball speed and rev rate. An example of a well matched bowler would be 17mph speed and 300rpm (off the hand). For each 1mph increase or decrease in speed, a corresponding increase or decrease of about 50rpm would stay matched. Bowlers who are speed/revs matched would start their calculations with 95* of sums. Link Text

Rules of thumb:

  • For the first 50 revs of imbalance (in excess), add 10* to the Total Sums.
  • For the first 1 mph of speed imbalance (in excess), subtract 10* from the Total Sums.

If the speed/revs imbalance is extremely high or low, you would add or subtract extra sums to compensate accordingly. The amount of sums you add or subtract is not linear (for the second 50 revs of imbalance, you will add or subtract less than 10*, etc.)

Step #2-Adjust Initial Sums (off from step #2 for very high or very low tilt & rotation).

Mo will also lower the sum of angles for bowlers with very high tilt & rotation, or raise the sum for bowlers with very low tilt & rotation.

For these tilt adjustments, we are using 13* to 17* of tilt as the normal tilt range.

For these rotation adjustments, we are using 45* to 60* of rotation as the normal rotation range.

Rules of thumb:

  • Lower totals by about 10° for high tilt
  • Raise totals by about 10° for low tilt
  • Lower totals by about 5° for high rotation
  • Raise totals by about 5° for low rotation

If the tilt or rotation is extremely high or low, you could add or subtract extra sums to compensate accordingly.

Step #3-Understanding Sums of the Benchmark Range (neccessary for calculations)

The Benchmark Range is necessary for adjusting other layouts off from the benchmark layout so the bowler will not have to change their specs when playing various conditions (Long & Strong layout/Control layout/Mid-lane layout/Totally Strong layout/ etc).

Total sums (drilling angle + VAL angle) determines the length of ball motion until the roll phase. (See: Three Phases of Ball Motion)

Note: The total sums of your sweet spot will include a (+ or - of degrees) which is the benchmark range.

  1. Adding these degrees to your total sums will add length to the ball motion. (increasing total length of ball motion before reaching the roll phase)
  2. Subtracting these degrees from your total sums will decrease the length of ball motion.
  • ± 30° for elite bowlers
  • ± 20° for good bowlers
  • ± 10° for average bowlers

Example

Sweet spot of 100º sums using (± 20º) for this example.

For dry or short oil patterns to increase length, use 120º sums.

  • Use a high ratio for long and strong layouts... (longer and quicker reaction to the dry...more of a skid /snap ball motion).
  • Use a low ratio for control layouts...(slower/smoother reaction to the dry)

For oily or longer patterns to decrease length, use 80º sums. (utilizing ratios to achieve the desired break shape)

  • Use a high ratio for Totally Strong Layouts... (defined/sharp motion...quicker reaction to the dry)
  • Use a low ratio for mid-lane layouts...(earlier/slower reaction to the dry...smoother & more continuous ball motion.)
.

Find Your Benchmark Ratio (by primarily analyzing tilt and rotation)

This is necessary to accurately calculate the drilling angle and the val angle individually.

For examples on how to do the math, see simple math examples.


Step #4-Find The Initial Ratio From Axis Tilt

The middle column (initial ratio benchmark range) gives approximate ratios for bowlers with speed/revs = matched + normal rotation.

Please note: when creating the chart we used 50º to 55º as normal axis rotation. (45º is slightly low and 60º is slightly high)

  • For axis tilt below 7º (especially when accompanied by high rotation) use this PDF chart.
  • For axis tilt below 7º accompanied by low rotation use the chart below:
  • For low axis tilt with very low revs use the chart below (even with high rotation):

Chart created by Athery Ratiochart.png

Special notes for axis tilt below 7º: With low tilt, the rotation seems to effect the ratios a lot more than with medium tilts. A high rotation will decrease them a lot (what Mo calls PDW territory) and a low rotation will significantly raise them. There is more of an extreme adjustment comparitively. The ratios increase as the tilt decreases until you reach below 7º to 10º; below that the ratios decrease. Part of the reason is because the maximum drilling angle is 90º and with low tilt, you need ratios which will take the ball down the lane. Here is a PDF chart on how to adjust Athery's chart, especially when low tilt is accompanied by high rotation.

Step #5 - Adjust the Initial Ratio (from Step #4 If bowler has high or low rotation)

Amount of adjustment necessary depends on the relationship between rotation and ball speed.

  • High rotation and/or high rotation accentuated with speed dominance = decreased ratios (use boxes further right on the chart)
  • Low rotation and/or low rotation accentuated with rev dominance = increased ratios (use boxes further left on the chart)

Step #6 - Find The Ratio Range (for calculating Long & Strong/Control/Mid-lane/Strong oil/Etc. layouts)

The maximum ratio and minimum ratio (drill angle and val angle) which should be utilized with your personal sweet sums is defined as your ratio range. This is how far you can deviate your ratio both higher and lower from your benchmark ratio. It can be calculated by choosing boxes left and right of your chosen ratio on the chart above. Mo very seldom gives an extremely large ratio range. It is more common with very low or very high tilt. A +/- of around 0.5 above and 0.5 below benchmark ratio seems to be close to the average ratio range.

You need to determine your personal Ratio Range to use in conjunction with your Total Sums Range to accurately calculate layouts for your personal specs or sweet spot.

  • Mo frequently uses the lower ratio range for easier THS wet / dry patterns for more control and mid-lane reaction
  • Mo frequently uses the higher ratio range (a defined break shape) for flatter or more demanding patterns to create a stronger reaction to friction.

Please note: On ratios less than 1:1, Mo sometimes expresses ratios with the val angle reduced to :1 example: 1:1.25 would be expressed as .8:1 (.8:1=1:1.25, etc.)

  1. Adjust the angles (ratio) for the design of the ball.
    1. Mo will usually raise the ratios on balls which tend to roll early.
    2. Mo will usually lower the ratios on balls which tend to be skid/flip.
  2. Adjust the angles for the pattern the bowler wants to use the ball on.
.

Pin to PAP distance will determine the amount of flare

Step #7-Choose the Pin to PAP Distance (for desired flare or desired amount of tilt & rotation retention)

Track Flare Chart

Track Flare Discussion:

High tilt players use Pin to PAP distances of 4 1/2" to 5 3/4" (with Asymmetrical balls)

  • 4 ½” Pin to PAP distance will make the ball come off the spot hard (more angular)
  • 5 ¾” Pin to PAP distance will make the ball roll forward sooner

Asymmetrical Balls exhibit most flare at Pin to PAP distances of 2 3/4" to 6 1/4"
Symmetrical Balls exhibit most flare with Pin to PAP distances of 3" to 4"

Retaining Axis Rotation & Axis Tilt (increase skid, reduce flare):

  • To retain Axis Rotation and Axis Tilt in SYMMETRICAL equipment, we would tend towards longer pin-pap (> 4") distances, while ASYMMETRICAL equipment we use shorter pin-pap distances (< 3").

Burning Off Axis Rotation & Axis Tilt (decrease skid, increase flare):

  • To burn off Axis Rotation and Axis Tilt quicker in SYMMETRICAL equipment, we would tend toward Max flare pin positions (3" - 4"), while longer pin distances (4"+) in ASYMMETRICAL equipment.
 .

Roll the ball

Step #8-Use Balance Holes (if desired)

With some extreme specs, the benchmark layout will include balance holes because the bowler will want balance holes in the majority of their equiptment.

  • Start with a smaller size hole (3/4") at least 2-1/2” deep
  • P1 hole = Reduces drilled dynamics
  • P2 hole = Maintains drilled dynamics
  • P3 hole = Increases drilled dynamics some
  • P4 hole = Increases drilled dynamics more
  • (This is a very basic interpretation of the Gradient Line Balance Hole technique. Please visit wiki sites for more detailed information.) http://wiki.bowlingchat.net/wiki/index.php?title=File:Gradient_Line_Hand_Out.pdf