Not sure if this applies, if you lubricate the trigger the thinners/solvents may flash off leaving a sticky goo. This might be a reason for the weight of pull to change. There are trigger specific lubes that will not do that.
If you are asking about shimming the lateral movement on pinned components, trigger or the lever, I'm not sure it would change things. Close tolerance fits are the best option. I have never measured the pin diameters to hole clearance. Never measured the lateral play either.
Bookmarks