I had one about 30 years ago as well. Super accurate shooter with one of the nicest triggers I've ever encountered on a factory Colt M1911 (not counting Colt's Custom Shop). First thing I did was replace that cheap roll pin for the rear sight (had one let go on a Colt Trooper Mk.III I also had at the time), with a section of a drill bit I had on hand. Worked fine after that, though it was very particular about the ammo I used in it. Definitely preferred 185 gr. semi-wadcutter rounds over all else; if it was match ammo, all the better. It would function fine with 230 gr. hardball, but for best results in the accuracy department (and that's the reason why I bought it in the first place), 185's were the best choice.