My Sams full build .45 runs and runs with minimum TLC like one of my Glocks. Dave Sams.
My Sams tuned 9mm Operator is almost, not quite, almost as reliable. But . . . 9mm one inch 50 yard gun with a very heavy slide to work.
My Wilson CQB Elite .45 seems the equal to the Sams gun for running. I realize there are some with bad luck with those semi-customs.
I'm fortunate to have had two TRPs and an LB Operator that run like the customs.
A close friend just got a Colt worked over by Derr Precision and it is spectacular. Greg Derr is on my short list for getting work done.