From the manufacturer
New, sharper grooves are closer together for increased friction, imparting more spin (up to 400 rpm in testing) for precise distance and trajectory control from full swings and finesse shots. The enhanced sole grinds and lead edges in the 431SS heads have been carefully crafted for exceptional surface interaction and versatility, gliding through the turf and sand to enable creative shot making.
Cool Clubs are the largest independent fitter in the world. With over 30 locations worldwide and growing. Our performance oriented fittings ensure you get the best outcome, the best clubs and you can truly Play Better Golf.
All our fittings are carried out hitting onto a range from our fitting studio so we can see ball flight. We only use tournament golf balls for a true reading on your performance. We use Trackman and our own in-house developed software optimised from our testing using our proprietary S3 shaft analysis system