My '08 production M&P 45 came with a trigger on the heavy end of the acceptable tolerance range (which is +/- 2 lbs, according to specs in the armorer manuals and what we were told in the armorer class). In other words, mine was producing averages in 8 1/2 - 9lbs range, instead of 7 lbs. The trigger 'break' was consistent and fine, but the take up was a bit rough & gritty. It was still good enough to let me wring some excellent practical accuracy from the gun from the first few mag loads.
Somewhere between 2000 - 2,500 rounds I checked it again, as it felt much better. I got some averages in the 5 1/2 lb range. I checked the same model belonging to someone else, a new gun with APEX parts installed, and that gun produced averages in the 4 3/4 - 5 lbs range.
Then, I installed the new sear housing (larger sear plunger & spring) and my trigger pull averages went up to about 7 1/2+ lbs. It's become smoother again, but I haven't checked the weight after another thousand or so rounds.
I don't pay much attention to the sear "reset", since I shoot to trigger recovery, rather than "trigger reset". I shoot a number of different pistols, as well as DA/DAO revolvers, so becoming set on just one "reset" on one specific handgun isn't practical for me.
It seems enough potential new owners have been expressing a desire for a sear reset that's more noticeable than the soft, non-distracting one originally developed by the S&W engineers, though. I've been told the company has been working on refining the M&P trigger for a while, and the new trigger revision is probably going to be more to their liking, I'd imagine ... (although you'll never be able to please everyone.
).
I'm curious to see how the M&P's being produced this summer are going to be regarding the triggers. I've heard some good things about the newly developed "tactical trigger" for the M&P, and I'm interested in seeing it for myself (and seeing what it will take in the way of parts/assemblies to retrofit my existing M&P's).