I've had my M&P 9mm for a couple weeks now, shot it in one IDPA match and another one coming up this weekend. The gun always fit my hand well, but even though I concentrated on pulling the trigger straight back, the gun squirmed around very slightly. Playing around with my grip and different backstraps I found what works for me is and extremly high grip, as high as I can put my off-hand palm on the frame without rubbing the slide. Some of the meat of my palm actually hangs above the frame and my thumb is just below the bore line pointing to the target (but not rubbing the frame). The web of my shooting hand gets pushed into the beavertail and it feels like I'm really on top of the gun. Pretty much the same grip as a 1911, but maybe even a little higher. IMHO the gun is definately designed with this grip in mind...anybody else?