the Phaze III has a rare and effective core/cover combination when it comes to Storm bowling balls. The Velocity Core is wrapped in a R3S Hybrid Reactive Coverstock with 1500-grit polished finish.

The TX-16 Pearl Reactive coverstock is more dynamic than ever, delivering unmatched backend reaction. Coverstock: Velocity A.I. Core Fragrance: Cherry Vanilla Cupcake ...

“If they want to continue to improve, the bowler will move to a performance bowling ball. These bowling balls contain a more sophisticated core and cover stock that will affect how aggressively the ...

There’s also things like reactive bowling balls — which some of the girls have gone ahead and purchased — and varying oil patterns on different lanes in different alleys. It’s the sort of ...