Re: Trigger pull
It involves stoning the sear and it really takes an experienced hand. I've been collecting and shooting Government Model (M1911) type pistols for over 40 years (Gawd it's been that long....) I can completely disassemble and reassemble blind folded - almost - and would not attempt it. The least damage you will do is make your it worse, the worst you'll do is hurt someone or yourself when it fires on it's own.
Like the others said, go to a pro and be selective find someone who comes highly recommended and not Bubba.