That is the intended location for the balance hole.
Short pin bowling ball layouts.
Draw a line on the ball from the center of the thumb hole through the pin.
On a symmetrical ball the center of gravity cg should be in line with the pin angling toward your thumb.
I always suggest asymmetrical equipment for shorter pin layouts because you have the psa helping the ball continue through the pins more than you can get with a symmetrical.
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The pin to pap distance pin length dictates how much flare potential the ball will have as it travels down the lane.
Short pin layouts require longer psa to pap distances.
The pin location has the biggest effect on the balls reaction and core location.
The layout of course defines how the core is oriented inside the ball relative to the bowler s pap and relative to the gripping holes.
Knowing how to lay out your bowling balls can help you gain an edge over your competition.
On an asymmetrical ball the mass bias should be in line with the pin and directly underneath your thumb.
Extend the line 10 past the pin to the bottom of the ball and mark that spot that is 10 from the pin.
Place a piece of white tape on that spot.
And a pin under drilling in most cases for most bowlers is going to roll earlier than a pin over drilling.
Pin to pap distance is one element of a bowling ball s layout.
You could take a short pin ball and drill it with the tommy jones layout and it would probably still react like a jones ball but it would also likely be statically illegal unless it had a really low top.
The more the ball flares the more fresh parts of the surface contacts the lane and the more the ball ultimately hooks.
The pap is the reference point for ball layouts.
The layout when the ball is drilled put the pin 4 5 inches from your positive axis point pap or under your ring finger.
