Patent ID: 7559852

Claim:
A method of establishing two locations on a face of a golf club head, comprising a first location (MD) which indicates a hit center point location for maximum distance of ball travel when a ball is struck by the golf club head (MD), and a second different location (BF) wherein a ball strike centered at the second location provides no change of torque about a long axis of a golf club shaft for the golf club head, and also provides maximum distance for ball travel when a ball is struck by the golf club head while having no change of torque about the long axis of the golf club shaft, at least one of the locations being determined by one of three methods consisting of computer analysis, repeated striking of a golf ball at a series of ball impact center points on a club face determined by a golf robot or by a live golfer using suitable instrumentation for providing both ball travel distance and golf club shaft torque data, and further establishing another of the locations.