If your piece looks anything like
this and is equipped with the standard plastic Colt POS narrow trigger, you're going to want to change your stock trigger ASAP to a wider aluminum one (possibly serrated with the three fancy holes poked in it). The increased surface area on the pad of your fingertip will allow for more consistent squeezes. Sear work, pull weight, and all that drama aside... having a wider trigger surface will aid in an even trigger pull by giving you a better seat to put more finger on there and help prevent the left and right pulling issues some shooters see when shooting pistols with narrower triggers (such as the stock 1911, Sig P220, etc). What was that old Pontiac slogan? "Wider is better."
Stock triggers on most made-by-Colt M1911s are absolute garbage. My "1991A1" was immediately upgraded and it made a big difference. I'm a little biased about this, though... I tend to favor wider triggers. I'm a big fan of the "bang flap" on H&K USPs.