Compare the specs of the Storm Proton PhysiX and Storm Parallax side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.
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| Brand | Storm | Storm |
| Ball Name | Proton PhysiX | Parallax |
| Cover Name | NeX Solid Reactive | TractionX7 Hybrid Reactive |
| Cover Type | Reactive Solid | Reactive Hybrid |
| Box Finish | 2000 Abralon | 1500 Grit Polished |
| Color | Magenta / Black / Violet | Marine / Steel / Black |
| Core Name | Atomic | Aeroflo |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.48 | 2.52 |
| Total Diff. | 0.053 | 0.054 |
| Int. Diff. | 0.017 | 0.019 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |