Compare the specs of the Storm Dark Code and Storm Proton PhysiX 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 | Dark Code | Proton PhysiX |
| Cover Name | ReX Pearl Reactive | NeX Solid Reactive |
| Cover Type | Reactive Pearl | Reactive Solid |
| Box Finish | 1500 Grit Polished | 2000 Abralon |
| Color | Obsidian | Magenta / Black / Violet |
| Core Name | RAD4 | Atomic |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.50 | 2.48 |
| Total Diff. | 0.058 | 0.053 |
| Int. Diff. | 0.020 | 0.017 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |