I disagree on clubs not having break in periods. Anytime you have layered composite/graphite materials, they are bonded with resins. These resins will flex and rebound over time, but as the resins break down a bit, they allow for more free flexing to happen. Ever hit a shaft for a while and bring it to get checked and it isn't as stiff as it was when it new? Thats what is happening. It is the same with composite baseball and softball bats, as the composites get hit more, bats get hotter until the break. Sent from my SPH-D710 using Tapatalk 2