Compare the specs of the Brunswick Mastermind Strategy and Brunswick True Nirvana 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 | Brunswick | Brunswick |
| Ball Name | Mastermind Strategy | True Nirvana |
| Cover Name | Relativity Solid | ECS Hook Pearl |
| Cover Type | Reactive Solid | Reactive Pearl |
| Box Finish | 500 / 2000 SiaAir | 500 SiaAir / Crown Factory Compound |
| Color | Blue / Violet / Orange | Black / Chrome / Gold Pearl |
| Core Name | Modified Mastermind Asymmetric | Nirvana Ultra Low RG |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.504 | 2.477 |
| Total Diff. | 0.048 | 0.054 |
| Int. Diff. | 0.013 | 0.013 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |