Staff Answer
Oct 08, 2026 - 02:58 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 has a strong influence on the reaction, and your driller can position the pin and mass bias to lean the motion earlier or more angular. 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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