What size grip are you using on your M&P? The reason I am asking is I was having a hard time getting a good grip using the small.. It felt good in the hand but when I would shoot it, I was pulling down.. It was kind of sloppy.. Not limp wristing.. Just not sitting well.. I changed to the medium grip and man.. What a difference it made.. I went from shooting low and all over the place to some good 2 to 4 in grouping at about 20yrds or so... I am shooting the M&P 40..
Ben
Ben