A ball with a 5" or more pin to cg distance is a "Pro Pin" not a "Pro CG"
“Pro CG” ball is where the center of gravity (CG) ends up a certain distance left or right of the preferred spin axis (PSA). If you draw a line on the ball from the pin to the PSA, the CG marker must be 2.5 inches or more from the line to be categorized as a “Pro CG” bowling ball. Although a Pro CG ball is still a first line ball, it has limited drill options which require certain types of layouts.
“Pro Pin” ball has a pin distance 5 inches to 6 inches out from the center of gravity (CG). Still categorized as a first quality bowling ball, it has limited drill options. Anything more than a 6 inch pin out ball would be termed an “X-Blem” or second line product.
Also Balls are considered "pin in" if the CG to Pin distance is 1 1/2 inches or less and "pin out" if the distance is 2 or more inches
Aloarjr810
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Edited by Aloarjr810 on 3/29/2012 at 8:02 AM