Roto Grip Sinister vs Totally Defiant and Hyper Cell Bowling Ball Reaction Video Ball Review

Roto Grip gets in touch with its evil side with the Sinister – the newest ball in the HP4 lineup.

Published on August 15, 2014 by videoballreviews



The Roto Grip Sinister is just mean. The pins and your opponents are going to feel the wrath.

The all-new Cage Core is designed to produce superior midlane all while providing backend continuation. Pair that with the super-strong 76H Hybrid Reactive Coverstock finished at 4000 Grit and you’ve got the perfect ball for long and heavy oil patterns.

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