I have one of each, both .45 ACP. The Sig is an STX, the Colt is a ‘90’s Combat Elite. I’ve never had a major problem with either although I did have to put a new slide lock in the Colt. The bottom of the part that the follower pushes on wore or broke off so it wouldn’t go into slide lock when the mag emptied. Never had any problem with the Sig. The Sig has a much better trigger and is more accurate. The Colt is going down the road to (partially) fund a new sporting clays gun.
