I have a m&p 9 full size for idpa/uspsa.. I have the apex USB and hard sear, like the apex carry kit but without the trigger spring to keep the trigger aroung 4#
are you sharpshooter? expert? how well are you doing with your pistol?, if you are shooting marksman or SS, you could keep that trigger, and practice and practice , then upgrade the gun. (once you are more into the game, if you arent already)
or you can use the apex competition too, this should give a 2.5 -3 trigger pull..
there is the apex FSS as well, it will be the most similar to a 1911 trigger in a polymer gun... but that is not for SSP or uspsa production...