Bowling Tip
By Mike Luongo

Bowlers: This week I would like to let you know more about the RG (which stands for radius of gyration and core torque) in bowling balls.
First to help you understand the RG, a modern weight block in a professional bowling balls is composed of several parts of different densities. Each of these densities has two characteristics. It is a certain volume and it occupies a certain location. When fused together, all of the different densities (all the weight of the ball) act as if they are a single unit of a single density that is rotating at a single distance from the center of the ball. This is all the RG is. It is a measurement tht tells you how far from the center of the ball the weight acts like it is rotating.
As far as core torque, it is a phase we use in the industry to measlure the "flip" in the ball, the harder the ball will turn the corner. As with anything else, it is a guide for estimating potential. How flippy a ball really will be is determined by the shape of the core, the bowlers style, the surface of the ball and the lane condition it is thrown on. A tall skinny core will generally flip harder than a short fat core. Even with all of this, is is important that there is no substutute for a good shot.
Mike Luongo is technically certified through IBPSIA as a Pro Shop Operator and Master Instructor. He is also a Silver Level Coach with the USBC and is an Advisor along with being involved with Special Events with the Storm and Roto Grip Bowling Ball Company. If you have a question or subject you would like covered, he can be reached at 435-720-7939 or via e-mail at mikel@stormbowling.com