Patent ID: 8864598
Filing Date: 2014-10-21
Classification: A63B,G01B,G01P,G06F,G06T

Abstract:
1. A method comprising: using an electronic measuring system, measuring in-swing-plane shaft deflection values of a golfer's golf club during the golfer's swing; determining a phase of the golfer's swing when maximum in-swing-plane shaft deflection occurs; determining a kick velocity of the golfer's swing at impact with a golf ball; and selecting a shaft flex for the golfer based on the determined phase of the golfer's swing when maximum in-swing-plane shaft deflection occurs and based on the determined kick velocity of the golfer's swing at impact with a golf ball; wherein determining a phase of the golfer's swing when maximum in-swing-plane shaft deflection occurs comprises determining whether the maximum shaft deflection occurs at or near the top of the golfer's backswing or during the golfer's downswing.