# User:Elgavachon/Sandbox

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Revision as of 16:36, 21 November 2013 by Elgavachon (talk | contribs) (→STEP #2...Adjust Sum For Speed/Rev Imbalance)

## Contents

**Bowler Specs Affecting Dual Angle Sweet Spot**

- Ball speed
- Rev rate
- Axis tilt
- Axis rotation

**Finding Your Benchmark Total Sums**

**STEP #1**... Find Speed/Rev Relationship

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

**STEP #2**...Adjust Sum For Speed/Rev Imbalance

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.

**STEP #3**...Adjust Sum *(of step #2)* for very high or very low tilt & rotation.

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

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