go with the PC. They get more individual attention and tuning apparently. I don't think the the pro series has the performance center sear. I think they just kinda clean up the original trigger system in the pro to make it a little better but a lot of reports I've seen say the pro trigger is no better than the original. the PC model also has the adjustable overtravel stop in the frame which is nice if you're gonna leave the trigger system stock because the M&P 1.0 system has a fair bit of over travel. you can get rid of some of it by tuning the trigger loop but its nice to have options.

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Equal opportunity shooter