Taylormade RAC Mirror Chrome Wedges 2011 Tour-Proven Y-Cutter Grooves 100% milled Y-cutter grooves offer a clean, sharp, consistent groove edge that grip the cover of the ball more effectively. The Y-cutter grooves consistently deliver up to 300 additional RPM than our Dual-Draft grooves, resulting in enhanced bite & control from shot-to-shot. Tour-Proven Sole Configurations Developed on tour, the rac Satin TP has a tour-configured sole that is ground low on the trailing edge & at the toe & heel. When viewed from above, the trailing edge appears curved, resembling the letter C. This sole configuration allows players to open the clubface around the green to play high, soft chips & pitches. The leading edges of all the rac TP wedge models are radiused, enhancing the players ability to hit low punch shots without digging. The versatility created by both the low trailing edge & the radiused leading edge make it possible to hit an extraordinarily wide variety of greenside shots with only a single bounce configuration.