Storm Gravity Shift Reviewed
The Gravity Shift offers the strongest ball reaction in the Shift series to date.
Pin to PAP(5 1/8" over 1/8" up) - 5 5/8"
Mass Bias Position - 3" right of thumb
CG Placement - center of grip
Balance Hole - none
Dark and aggressive, extra bite with a great backend, this is the Black Widow Bite Bowling Ball.
Black Widow Bite Bowling Ball
Increased hitting power and back-end hooking action thanks to reactive coverstocks responding more aggressively to dry lane surfaces.
Brunswick Power Groove Reactive Black and Purple Bowling Ball
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