i have read a lot of people say that they did not like the factory M&P trigger when the guns came out. i have heard good things about the shield trigger though, and i have also heard that whatever they did to the shield trigger, they are now doing to all the M&P's. is this true? i have handled a few M&P's in the shop over last few months and i thought they were pretty good triggers, but im a rookie so what do i know haha. lemme know guys, thanks!