new barrel profiles more evenly distribute the mass of the ring-free, multi-variable wall design across the entire barrel for a more consistent sweet spot.the stiffer s-40 composite handle helps transfer more energy faster from player to ball for more performance.tightened production tolerances allow barrel diameters to be built to the maximum limit, creating more surface area and higher overall performance.our one-of-a-kind outer locking system creates the stiffest connection available, while dismissing virtually all vibrations on contact for your strongest, smoothest swing yetazr alloy offers a more responsive microstructure for better feel, more forgiveness, and more performance