I have a couple, my first is a Series 70 Gold Cup that has been completely gone through by a local smith back in the 80's. Kart barrel, fitted frame/slide, checkered MS Housing & front strap, match bushing, and a fine trigger job. Then I build up a Springfield Armory GI model into a competition gun in the late 80's, and it's the one I break 6" balloons with at 100 yards. It's about full house, match barrel, fitted frame/slide, match trigger, hammer & sear, Bomar sights, stippled frame and top strap, metaloyed frame, mag well. Then there are the more recent, I found a Rock Island Armory "Compact" in 45 in 2008 and had to add enhanced sights and beaver-tail grip safety. I liked the RIA so much that when they brought out the RIA Compact in 9mm I had to have one. I shoot it the way it came (except grips).
Gold Cup
Springfield Armory
Rock Island Armory Compact 45
Rock Island Armory 9mm