Step-by-step guide

Following these steps will ensure a proper fit

1. Warm up the hand, massage/bowl
2. x
3. x
4. x
5. x
6. x
7. x

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Constants to fill out on the spec sheet

• Before starting the measurement, you can already write down some data on your spec sheet.

1. 1. Bowler Hand (Left or Right)
   2. Bridge between the fingers = 1/4
   3. Lateral pitches: 3/8 (middle finger) and 1/2 (ring finger)
   4. 5/16's rule

 

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Mark the bowler's hand with a pen

1. Mark the MIDDLE FINGER
   • Find and mark the bending point of the FIRST joint.
   • Find and mark the bending point of the SECOND joint.
   • Measure the distance between both lines.
   • Divide that distance in half.
   • Draw a line.
   • Use this line with your fitting tools.

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5/16's rule

This rule is used to find the measurement of the RING finger.​

1. Find and mark the FIRST joint of the RING FINGER​

2. Slightly cup the client’s hand, similar to the curvature of a bowling ball.​

3. Draw a line from the FIRST joint of the MIDDLE FINGER onto the RING FINGER​

4. Measure the distance between both lines on the RING FINGER.​

5. Use the following equation:​  Measurement from #4 is hereby designated X.​  ---  5/16 – X = +/- distance of the RING FINGER​

​Ex #1 : If X (distance between both lines on the ring finger.)is 7/16​  --- 5/16 – 7/16 = -1/8​

The span of the RING FINGER is 1/8 shorter than the span of ​the MIDDLE FINGER.​

​Ex #2: If X is 1/8​  ---  5/16 – 1/8 = 3/16​

The span of the RING FINGER is 3/16 longer than the span of ​ the MIDDLE FINGER.​

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Using the fitting tools

• BT Ball Fitter
• Innovative Fitting Ball                                                Prendre un photo avec le bal fitter pour montrer where to measure ??

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Fingertip Pitches

 Pitch what you see! 3/4 or more is very possible and sometimes required

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Importance of the inserts

Compensate for the angle in the insert.

 

 

 

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