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Step-by-step guide

Following these steps will ensure a proper fit

  1. Warm up theyour hand,hand massage/bowl( either massage or bowl)
  2. xMeasure the MIDDLE FINGER
  3. xMeasure THUMB FLEXIBILITY
  4. x
    5. Measure
  5. x
    6. FINGER
  6. x
    7. &
  7. xTHUMB hole sizes

Constants to fill out on the spec sheet

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

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’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 ??

Fingertip Pitches

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

Importance of the inserts

Compensate for the angle in the insert.

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Missing Miss Quads

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Evaluate the thumb flexibility

The bowler's hand must be relaxed.

  • Pull back on the thumb to measure the flexibility
  • Follow the chart provided for the correct pitch based on span/flexibility

show where to input in Spectre

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Remember that the pitch given by LM1-13 ????  is a starting point and youYou might modify pitch for the following reasons:

-A longer thumb (Over 2 5/8'')

    • Add 1/16 - 1/8'' reverse

- A shorter thumb (Under 2'')

    • Subtract 1/16 - 1/8'' reverse

- Very moist skin

    • Add 1/16 - 1/8'' reverse

- Extremely dry skin

    • Subtract 1/16 - 1/8'' reverse

- If the bowler uses excessive grip pressure

    • Check hole sizes to determine if they are too large

Hole size

FINGERS:
  • Check using grips.
  • Grips should slide in with slight restriction. Once inside hole, it will contract slightly.
  • Indicate OD(outer diametre) Size.
THUMB:
  • If round, aim small and work with tools
  • If oval, consult chart.
  • Measure base of thumb for taper.

Recap of measurements

FINGERS:
  • Check finger flex.
  • For 80+% of your clients use REVERSE pitch only.
  • Check grips sizes and indicate the OD.
  • ALWAYS REMEMBER TO COMPENSATE FOR GRIPS.
  • Write down infospitch on a spec sheet to avoid confusion.

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THUMB:
  • Flexibility (Refer to thumb pitch chart).
  • Determine round or oval.
  • Measure Taper.chart.
  • No lateral pitch for beginner/novice bowlers.
    bowlers

 

Here's what a complete spec sheet should look like!

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Choosing Ball Weight

Choosing the correct ball weight is critical for first time and novice bowlers. ​Improper weight selection can make a comfortable grip difficult.

  • If the bowler is using a house ball comfortably for one game, and then tires ... the same weight as the house ball, when properly fitted, should be fine.​

  • If the bowler uses a house ball for three games with little or no problem then two pounds heavier than the house ball, when properly fitted, should be fine.​

  • Junior bowlers ... 10% of their body weight PLUS two pounds as a maximum, or same weight as their age to one pound less than their age.​

  • Always let the customer test the weight of the ball before drilling, to confirm the choice (put undrilled ball in a see-saw).​

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