UST Mamiya Recoil ES 760/780 Smacwrap .370RECOIL 760 AND 780 ES SMACWRAP BREAKTHROUGH TECHNOLOGY FOR BREAKTHROUGH PERFORMANCE Recoil 760 780 ES SmacWrap iron shafts are an evolution of the Recoil 760 780 ES models. These iron shafts are designed to provide maximum control and distance for all golfers through the latest in design and materials. We incorporated SMACWRAP into the shaft to provide better feel through higher damping rate. Recoil 760 780 ES SmacWrap iron shafts are offered in a