StrikeStack
Ball library
Brunswick Mastermind Einstein bowling ball

Brunswick

Mastermind Einstein

Released July 2015

Medium OilMid HookContinuous
Hook strength
7/10

Specs

Coverstock
Relativity Hybrid Hybrid Reactive
Core
Mastermind (modified) Asymmetric
RG
2.504
Differential
0.048
Intermediate diff (mass bias)
0.013
Factory finish
500/2000/4000 Siaair Micro Pad
Released
July 2015

The oil, hook and strength labels are StrikeStack's estimate from the published specs, not the manufacturer's rating. Specs provided by bowwwl.com.

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