P.S. If you trust Massad Ayoob, whom I don't necessarily agree with on this one, he has made it widely known that he does not recommend trigger jobs on carry pieces. He feels it might give a DA or prosecutor additional ammo, so to speak. He thinks anything other than factory could give the impression to a jury that you were looking for a 'better killing machine'. I don't agree necessarily agree with him, and I don't think it is an issue in Texas, but just figured I would throw it out there as some added info.
Do such modifications come up in trial very often?
Especially, if in the aftermath of the shooting you accidentally mutter, 'I didn't want to shoot him, but man you should have felt how sweet that new trigger was...'