As an E-Series owner I can assure prospective owners that the problem most certainly WAS addressed. Unfortunately, the problem most certainly STILL REMAINS.
Rather than programming the new CNCs in the Maine facility to properly cut frame dimensions, S&W chose instead to add material to the top of the trigger shoe via two "steps". Mine was still loose and as I value a clean trigger I fit a new Grieder.
To the OP: since parts are decidedly not drop-in, in my case requiring thinning of the sear feet, polishing of the bow and the usual filing to height, I would recommend adding a bit of Bondo or similar to the top and carefully filing to fit. The Wilson would be a good second option as the bow is shorter than the standard Grieder (which can be ordered with a slightly shorter bow) but will need to be adjusted properly for height by filing and length using the tabs.
The SW1911 is by no means a traditional 1911 but mine has been reliable thus far with no suspect wear to speak of. The only other real change would be to a lighter recoil spring as the OEM is a heavy, stiff, short lived bit of bailing wire junk. I like my Smith but I'm sticking to Colts from now on.