Tag Archives: rst

Bowling Ball Reviews, General, Roto Grip, Strong Defined

Roto Grip RST Hyperdrive Bowling Ball Review

First ImpressionsThe Roto Grip RST HyperDrive is a pretty ball and we were very excited to try it. We had high expectations and we were left partly confounded. Tamer Elbaga (Lefty)Style: TweenerRPM: 330 rpmPAP: 5 & 3/8 upAverage Speed: 18.5 mph (at release)Axis tilt: lowAxis rotation: medium/highTest Equipment: 14 PoundsLayout: 50 x 5 x 45 … Continue reading Roto Grip RST Hyperdrive Bowling Ball Review →

Bowling Ball Reviews, General, Mid Defined, Roto Grip

Roto Grip RST X-2 Bowling Ball Review

First ImpressionsRoto Grip has another decent shiny asym. Usually this formula works well and the RST X-2 seems to do so. Let me introduce our new partner Haley’s Pro Shop. A big thank you to Jeff Miller and Ron Hoppe. Don’t forget to check out Haley’s Pro Shop for world class drilling and coaching! Tamer Elbaga … Continue reading Roto Grip RST X-2 Bowling Ball Review →