To become truly dominant, your arsenal must work in harmony with your game. In just a few simple steps,Star Search™ can help give you an idea of which Roto Grip balls will perform best given your skill level, style and desired performance.
Current Average would be the average range that best describes your scoring tempo and has the least weight when fine-tuning ball selection.
Ball Speed refers to the speed of the ball at the time of release.
Rev Rate is defined as the amount of rotation imparted to the ball at the time of release.
Axis Rotation is defined as the direction the ball is rolling compared to the direction the ball is thrown.
Track is defined as how close the first flare/oil ring are to the fingers and thumb. This measurement is used to estimate the amount of axis tilt the bowler imparts on the ball.