I purchased a new M3 driver in February 2019 and after using it twice on the range and once in a round, discovered the back edge uneven and sharp to the touch. Our Taylormade Rep agreed that the composite was separating and after a month of waiting, replaced it with a M5. Happy as clam until I discovered that this driver, just removed from the plastic wrap, was also uneven same as was the M3. I give up! Although a devout fan of Taylormade, no more. Back to Callaway. Customer service and quality control is much better.