Staff Answer
BowlersMart
Oct 08, 2026 - 02:55 PM
No. It is sold undrilled, without finger holes, so it can be fitted to your hand and span at your pro shop. Because the core is asymmetric, layout changes the reaction more than it does on a symmetric ball, so talk the pin and mass bias placement through with your driller. For layout guidance, Storm's drilling instructions for symmetric and asymmetric balls are on our site: https://www.bowlersmart.com/bowling-t...
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