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== Instructional Material ==
 
  
'''Last Update January 1, 2013'''<br />
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'''From A reply by Jim Merrell to the topic Carrydown or Depletion? What to look for'''
The Books and Videos listed below have been reviewed by forum members (with a few exceptions.
 
If you have read or viewed these or any others, please add your reviews.
 
There is a prototype format that follows the list.
 
  
===Books - The Written Word===
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Source: http://forum.bowlingchat.net/viewtopic.php?f=20&t=13148
  
Bowling Execution - 2nd Edition<br />
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As to what to look for? It's a little more complicated than a one line answer, sorry for the long post.
by John Jowdy (Feb 13, 2009)<br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6439&hilit=key%3A123xyz<br />
 
  
BOWLING: The Handbook of Bowling Pschology<br />
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Disclaimer: none of the following is based on scientific data......just my observations over many years.
by Eric Lasser, Fred Borden, Jeri Edwards<br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6367&hilit=key%3A123xyz<br />
 
  
FOCUSED for BOWLING: Mental Skills to Master Every Shot<br />
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I view depletion as a reduction of something; that something being oil in the case of the bowling environment.
by Dean Hinitz <br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6368&hilit=key%3A123xyz<br />
 
  
Intrinsic Bowling - Beyond "The Zone" Into The Inner Bowler (Volume 1)<br />
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'''Here's the simple explanation:'''
by Dr. Dennis A. Hooker PhD and Palmer Fallgren (Oct 15, 2012) <br />
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Depletion of oil on the lane results in earlier reaction (ball could lose energy too soon....lose of down lane reaction).
http://forum.bowlingchat.net/viewtopic.php?f=3&t=7097&hilit=123xyz<br />
 
  
Let it go<br />
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Carry down of oil on the lane typically results in later ball reaction.
by Palmer Falgren<br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6365&hilit=key%3A123xyz
 
  
Par Bowling: The Challenge<br />
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Now for the dissertation:
by Thomas C. Kouros  <br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6175&hilit=key%3A123xyz<br />
 
  
Play the High Friction Game CD <br />
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'''Depletion of oil'''
by Mo Pinel<br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6303&hilit=key%3A123xyz<br />
 
  
See It, Feel It, Do It<br />
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'''Givens:'''
by Mo Pinel<br />
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1) The ball is traveling at its fastest speed as it leaves the hand (facilitates skid).
http://forum.bowlingchat.net/viewtopic.php?f=13&t=6927&hilit=123xyz<br />
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2) Axis Rotation is at its greatest at release (facilitates skid).
 +
3) During the balls path down the lane track flare increases exposing fresh cover stock (facilitates depletion of oil).
  
The Game Changer: A simple system for improving your bowling scores<br />
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'''Axiom #1'''
by Mark Baker<br /> 
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6178&hilit=key%3A123xyz
 
  
The Inner Game of Tennis: The Classic Guide to the Mental Side of Peak Performance<br />
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Oil depletion occurs at a greater rate in the mid lane versus the head area in my humble opinion.
by W. Timothy Gallwey, Zach Kleiman and Pete Carroll (May 27, 1997)
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6440&hilit=key%3A123xyz<br />
 
  
THE MENTAL GAME<br />
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'''Reason being:'''
by George Allen <br />
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1) Ball speed and axis rotation are at their greatest during the first part of the lane.
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6366&hilit=key%3A123xyz<br />
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2) Ball speed and axis rotation decrease in the mid lane as flare increases.
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3) Track flare is a contributing factor to mid lane oil depletion.
  
===Videos===
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'''Axiom #2'''
  
A Pro's Guide To Better Bowling - Volume 1 -VHS<br />
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I had a great reaction then the heads starting hooking. Really?  
by Don Johnson<br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6176&hilit=key%3A123xyz<br />
 
  
A Pro's Guide To Better Bowling - Volume 2 - VHS<br />
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'''Maybe not:'''
by Don Johnson<br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6179&hilit=key%3A123xyz<br />
 
  
Dick Ritger Series Volume 1: The Perfect Strike Feeling - DVD<br />
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Depletion of oil in the mid lane moves shortens the skid zone and moves Hook Zone closer to the foul line.
by Dick Ritger<br />
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What once was a good reaction we now see the ball over reacting down lane. (slide #2)
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6308&hilit=key%3A123xyz
 
  
Dick Ritger Series Volume 2: Developing Accuracy & Playing Angles - DVD <br />
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The move left (right handers) is not to find more head oil, but to get the ball into the fresh oil in the mid lane restoring our original ball reaction. (slide #3)
by Dick Ritger<br />
 
  
Norm Duke - Learn to Bowl Competitively DVD <br />
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'''Carry down'''
by Norm Duke<br />
 
http://forum.bowlingchat.net/viewtopic.php?f=3&t=6180&hilit=key%3A123xyz<br />
 
  
===Prototype format information===
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Oil picked up on the balls surface in the mid lane is re-deposited on the lane after the ball leaves the end of the oil pattern. (slide # 6)
  
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The additional oil past the end of the pattern reduces the traction between the ball and the lane surface. Less traction….less reaction.
  
'''Impetus for rating polls'''
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'''Oil depletion and carry down similarities.'''
On July 3 2012,  A forum member wrote: How about having a section in the Wiki for books? Could we have them rated too by those of us who read them?
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Excessive oil depletion in the mid lane can cause the ball to progress through the Skid and Hook Stage
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prematurely. Turning rotational energy into translational energy too soon and the ball often hits flat.
  
http://forum.bowlingchat.net/viewtopic.php?f=10&t=6159
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Carry down moves the Hook Zone further down lane, reducing the balls chances of getting into the Roll Stage. Often resulting in the ball hitting flat.
  
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'''Thus, similar effects on ball motion down lane.'''
  
A '''template''' was created wherein members of the forum could rate instructional material.
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'''General guidelines:'''
The idea was to create a somewhat dynamic list of our members ratings.
 
Any member can use this or their own template.
 
The Bowling Bookstore is an Internet Vendor of Bowling Instructional media and other bowling related material
 
http://www.bowlingbookstore.com/home.html
 
It is listed here because it contains many books and videos on the sport of bowling.
 
  
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Move feet and maybe target left ………ball reaction restored………probably dealing with oil depletion.
  
'''Topic Name''' - Rate/Review - xxxxxxxxxxxxxxxxxxxxxx
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Move feet and maybe target left ………ball reaction not restored………change to a weaker ball and deliver another ball on the same line. Ball reaction restored……...oil depletion.
  
'''Creation of these polls is intended to be an ongoing process, e.g. Search for <big>123xyz</big> which was embedded as a potential unique string
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Ball reaction not restored………. possibly carry down.  
This will return all polls created with this string.
 
'''
 
  
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Carry down………move feet and target right of the original target to get around carry down. Sometimes, this move will require balling up to a stronger cover stock.
  
'''The Initial Template follows -'''
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While this may seem like a lot to digest......once familiar with the process.....it only takes several shots for me to make a decision what the athlete is dealing with....depletion or carry down.
  
  
This is a prototype based on a members request via http://forum.bowlingchat.net/viewtopic.php?f=10&t=6159
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Put Slides after this
  
[b][color=#FF0000]Search Key: 123xyz
 
Use the above search key to pull all polls used with this template.[/color][/b]
 
  
If you've read, watched, or listened to, please take the time to rate it via the poll.
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[[File:1 Fresh Shot Good Ball Reaction.jpg|thumb|500px|Test phrase]]
  
[b][color=#FFFF00]Title
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[[Image:1 Fresh Shot Good Ball Reaction.jpg|thumb|500px|Test phrase]]
Authors name (Author)[/color][/b]
 
  
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[[Image:1 Fresh Shot Good Ball Reaction.jpg]]
  
The higher the number, the higher your opinion of this material.
 
  
Editorialize if you'd like to complement your rating
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[[Image:Scenario 1.jpg|thumb|left|500px|Scenario 1]]
 
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[[Image:Scenario 2.jpg|thumb|left|500px|Scenario 2]]
 
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[[Image:Scenario 3.jpg|thumb|left|500px|Scenario 3]]
You may change your mind at a later date!
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[[Image:Scenario 4.jpg|thumb|left|500px|Scenario 4]]
 
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[[Image:Scenario 5.jpg|thumb|left|500px|Scenario 5]]
 
 
'''Poll question area'''
 
 
 
1 Lowest Opinion
 
                                                                               
 
2
 
 
 
3
 
 
 
4
 
 
 
5 Highest Opinion
 

Latest revision as of 08:49, 2 July 2017

From A reply by Jim Merrell to the topic Carrydown or Depletion? What to look for

Source: http://forum.bowlingchat.net/viewtopic.php?f=20&t=13148

As to what to look for? It's a little more complicated than a one line answer, sorry for the long post.

Disclaimer: none of the following is based on scientific data......just my observations over many years.

I view depletion as a reduction of something; that something being oil in the case of the bowling environment.

Here's the simple explanation: Depletion of oil on the lane results in earlier reaction (ball could lose energy too soon....lose of down lane reaction).

Carry down of oil on the lane typically results in later ball reaction.

Now for the dissertation:

Depletion of oil

Givens: 1) The ball is traveling at its fastest speed as it leaves the hand (facilitates skid). 2) Axis Rotation is at its greatest at release (facilitates skid). 3) During the balls path down the lane track flare increases exposing fresh cover stock (facilitates depletion of oil).

Axiom #1

Oil depletion occurs at a greater rate in the mid lane versus the head area in my humble opinion.

Reason being: 1) Ball speed and axis rotation are at their greatest during the first part of the lane. 2) Ball speed and axis rotation decrease in the mid lane as flare increases. 3) Track flare is a contributing factor to mid lane oil depletion.

Axiom #2

I had a great reaction then the heads starting hooking. Really?

Maybe not:

Depletion of oil in the mid lane moves shortens the skid zone and moves Hook Zone closer to the foul line. What once was a good reaction we now see the ball over reacting down lane. (slide #2)

The move left (right handers) is not to find more head oil, but to get the ball into the fresh oil in the mid lane restoring our original ball reaction. (slide #3)

Carry down

Oil picked up on the balls surface in the mid lane is re-deposited on the lane after the ball leaves the end of the oil pattern. (slide # 6)

The additional oil past the end of the pattern reduces the traction between the ball and the lane surface. Less traction….less reaction.

Oil depletion and carry down similarities. Excessive oil depletion in the mid lane can cause the ball to progress through the Skid and Hook Stage prematurely. Turning rotational energy into translational energy too soon and the ball often hits flat.

Carry down moves the Hook Zone further down lane, reducing the balls chances of getting into the Roll Stage. Often resulting in the ball hitting flat.

Thus, similar effects on ball motion down lane.

General guidelines:

Move feet and maybe target left ………ball reaction restored………probably dealing with oil depletion.

Move feet and maybe target left ………ball reaction not restored………change to a weaker ball and deliver another ball on the same line. Ball reaction restored……...oil depletion.

Ball reaction not restored………. possibly carry down.

Carry down………move feet and target right of the original target to get around carry down. Sometimes, this move will require balling up to a stronger cover stock.

While this may seem like a lot to digest......once familiar with the process.....it only takes several shots for me to make a decision what the athlete is dealing with....depletion or carry down.


Put Slides after this


File:1 Fresh Shot Good Ball Reaction.jpg


Scenario 1
Scenario 2
Scenario 3
Scenario 4
Scenario 5