So, where do I start? The ProMotion is really good…thanks for reading. Ok, maybe it’s not that simple but, it is a great ball. This is the third signature ball from Storm and Jason Belomnte following the Drive and Timeless. They stayed with a symmetric design once again with the Piston core shape, this block produces an RG of 2.52 and a diff of .049. Pairing Storm’s SPEC cover and the Piston core creates, by far, the most continuous motion that I can remember seeing on the lane. We released a ball review on our channel, Callahan’s Performance Bowling, with three testers, one traditional and two two handers and it is impressive watching ProMotion go down the lane and through the pins. It reminds me of a Phaze II as far as the shape with more roll on the back end. I think this release could find a home in anyone’s bag, I wouldn’t call it a bench mark due to the strength but, it has the predictable look that you want on a fresh block or league condition. Team Utah and Belmo at it again! Great ball, go get one. Thanks for reading