The following clubs in the 2010/11 Piranha Golf product range have been certified as conforming to new groove guidelines by the USGA: A-Blades (Decision 2010-494-A-H), V-Blades (Decision 2010-495-A-H), Performance Cavity (Decision 2010-496-A-I), Bite Wedge - 52,56,60 Degree (Decision 2010-498-A-C), Piranha Hybrid - 19, 22, 25, 28 Degree (Decision 2010-499-A-D and Piranha Proto 420 Driver - 9 Degree (Decision 2010-501-A-D). Additional drivers, 6, 7, 8 and 10 Degree, 3, 5 and 7 Fairway Metals and our Proto Putter are being assessed and decisions expected shortly.