A theoretical point that defines the average location of weight in a clubhead, or the internal point about which the club rotates.A low CG helps to launch the ball higher. It isn't always found at the geometric center.
The measure of a club's resistance to twisting on off-center hits that's sometimes equated to forgiveness.The USGA limit for drivers is 5,900 grams/cm².
All judging is based on a 100-point scale.GOLD products earned a score of 93 to 100.SILVER products earned a score of 88 to 92.99.
THE RATINGS
The star ratings are meant to reflect the various levels of judges' scoring from Poor to Outstanding. Each star represents a scoring range, with a ½ star generally equal to the upper end of a particular range. For example, scores in the 93 to 96 range are represented by a star rating of __ ½__