Good work. I'll bet that sight picture comes around quite a bit faster now.
My son has an M&P and he loves it. My personal opinion is that they are they very best of the modern autoloaders.
RMD
What's the round count on the pistol?
Is it possible that it's time for a new FP spring? i.e. The old one is simply too weak to retract the FP following hammer strike?
Good Luck and please let us know as I have a 645 and it's my favorite pin shooter.
Thanks,
RMD