![Proshop guy used i guess a insert to fill the thumbhole and smoothed it out. Would this ball be legal? : r/Bowling Proshop guy used i guess a insert to fill the thumbhole and smoothed it out. Would this ball be legal? : r/Bowling](https://preview.redd.it/noffbxg26j881.jpg?auto=webp&s=0d4d4866171f5c2d9306febe009bd930cb7545b9)
Proshop guy used i guess a insert to fill the thumbhole and smoothed it out. Would this ball be legal? : r/Bowling
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