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Key principles Fingers are inserted into the second joint Thumb is seeded all the way into the bowling ball, up to the base of the thumb Good beginning grip Lower revolution rate at point of release Ball reaction is smaller and allows the bowler to focu...

Following these steps will ensure a proper fit Warm up the hand, massage/bowl Measure the MIDDLE FINGER Measure the THUMB FLEXIBILITY Measure FINGER and THUMB hole sizes Constants to fill out on the spec sheet Before starting the measurement, you...

Span: The distance between the fingers and thumb used for the purpose of gripping the ball. Hole Size and Shape: The internal measurements and shape of the hole or insert used. Pitch: The angle at which a hole is drilled in the ball. Pitch is defined a...

Key principles Fingers are inserted to first joint Thumb is seeded all the way into the bowling ball, up to the base of the thumb More advanced grip​ Higher revolution rate at point of release​ Stronger ball reaction which allows the bowler to...

Following these steps will ensure a proper fit Warm up your hand ( either massage or bowl) Measure the MIDDLE FINGER Measure THUMB FLEXIBILITY Measure FINGER & THUMB hole sizes Constants to fill out on the spec sheet Before starting the measureme...

Turbo Quad                                                                                                                                 Power Oval: 0 Pitch in the grip No compensation needed Power Oval Mesh: 1/8" FORWARD pitch in the grip Com...

Vise Powerlift/Semi Powerlift: 1/4" FORWARD pitch in the grip Compensate 1/4" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex ( 1/4" REVERSE ) = Drill the hole 1/2" REVERSE because 1/2" - 1/4" = 1...

Ultimate Powerlift/Oval Powerlift: 1/4" FORWARD pitch in the grip Compensate 1/4" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex ( 1/4" REVERSE ) = Drill the hole 1/2" REVERSE because 1/2" - 1/4" =...

Contour Oval Oval: 0 pitch in the grip No compensation needed Contour Semi Cerise Semi: 3/16" FORWARD pitch in the grip Compensate 3/16" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex (...

Jopo Power Flat/Oval Power Flat: 1/4" FORWARD pitch in the grip Compensate 1/4" REVERSE when drilling the hole in the ball to arrive at the ending desired pitch Example: Normal Flex ( 1/4" REVERSE) = Drill the hole 1/2" REVERSE because 1/2" - 1/4" = 1/...

3 Measurements Smallest - Starting bit Largest - Width of oval Oval direction Taper base of thumb Measure the base of the thumb Start with that bit Go down 1/8'' max 1/32 step downs Go till the start...

There are 3 separate processes that have to be achieved in order to drill a ball for a bowler. First, we need the measurements for the bowler’s hand, whether that is copying previous measurements, or taking new ones (see chapter – Fitting). Second, we need t...

Milling machine / Drill press - Make sure it's clean when you start the job and that the pitches have been calibrated. Drill bits - Make sure they have been sharpened recently. Ruler - Span ruler that is accurate to at least 1/16" - Having a post to secure i...

1)      Draw centre line and midline of grip 2)      Dividing the span of the middle finger in half, draw the span line for the middle                 finger and ring fingers 3)      Draw bridge lines 4)      Select the correct drill bit for the middle fi...

Follow these steps to create a new bowler profile On Desktop, click BOWLERS in the top menu On Mobile, click the avatar icon on the bottom left of the menu On the top right of your screen, Click ­ + Add Bowler Add the bowler's personal information....

In order to create a Spec Sheet, first the bowler profile must be created. If this is a brand new client, with no history Click on (Add Spec Sheets ) If this is an existing bowler with a spec sheet already on file, and you want to create a new b...

Cloning the sheet is the best option for updating a bowler's measurements while saving the old measurements in the bowler's history. 1. To clone the sheet , click on clone button  Then you can name the update the name of the sheet  ex: Then click the ...

1. Choose the grip type. If the displayed grip type is not what you want, click on the displayed grip type. 2. The selection box will appear. Click on the down arrow and the other choice(s) will appear.  When when you click your selection, the selection ...

1. This section of the spec sheet is for entering all of the thumb information. When you select an option, make sure the option you want is highlighted in dark blue.  Using "CENTER" will result in the original measured pitch being in the center of the hole. ...

To enter the information for a round thumb hole, click " Round" Button on thumb info section located on Spec Sheet. Example: When the size of the thumb is determined , click on "Size" button. When the window opens, click on the down arrow and choose th...