I put the APEX Duty Kit in my .45. Took the pull from 8 lbs to 4 1/4 lbs. Super easy to install worth the money spent. Also added the APEX extractor. I had about 1500 rounds through mine before doing the work. It never really lighted up on the pull but the gritty pull did go away. If its pull weight that's bugging you, that won't get any better without a kit. I have seen posts about guys doing some polishing on the internals that made a big difference too. Hope this helps.
My pistols, however, I always kept by me.
Just so there is no confusion, there are three options from apex: duty AEK (5-7#), competition AEK (2-3#), and the FSS kit. The AEKs make the trigger smoother and crisper, the FSS kit reduces take up along with the the other things the AEK kits do. The FSS will get you the closest to the 1911 trigger.