re: Does a trigger job effect the value of a pistol?

No, but they're people out there that polish all the bits, rework some shite, change some parts and effectively make it, basically, a 1911 trigger. It's a two part trigger with a long take up, that will not change, with a 7-8# pull at the end. That part and the reset can be completely worked over. The # pull is easy, making it crisp with a short reset will cost you. I want a new front sight as well.