I have a possible SD-73 4 sale. Thumb is plugged right now and drilled fingertip with no grips. Pin is around 4 inches and is drilled label leverage (pin at around 45 degrees and up on the ring finger, cg in the center of grip). Message me with interest, and I will talk to my pro shop operator to see if he is willing to sell.
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*Erie Community College bowling*
Buffalo bowlers are the best all around in the country.