Truth.snipped...you can’t take a junk milspec trigger and modify it to make it perform like a quality custom engineered trigger designed to be what it is.
You can improve the milspec trigger but that’s about it. It will never be a precision trigger.
I've done the setscrew, polish, hammer chop, JP Spring job and even have one build with all that AND it's nickel boron coated. While it's a definite improvement and quite "usable" they just don't compare.