Although it's been 15 years since I owned a handgun, I was once a committed 3-Gun Bullseye competitor, and my large bore gun was a Series 70 Gold Cup; Excellent firearm.
There was a professional smith who shot at our range and specialized on 1911's. He taught me the do's, don't, and how's of tuning a 1911, and I did quite a few for my friends and myself. I've owned the AMT long slide (mistake), and even bought some Thompson frames and built up some guns using the Sarco Builder's kits (definitely no mistake at the time) as bare bones service handguns.
What I found most interesting was how little one actually needed to do to transform the 1911 into something worth cherishing. His philosophy was that JMB actually knew what he was doing when he designed the 1911, and that no major mods were necessary to make it perform optimally. It was all just a matter of slowly and attentively optimizing the parts relationships. Most of my work did not involve replacing any parts, it was nearly all about refining the fit of the existing parts.
To do it over today, I would go straight for the
SA RO. Verify that the parts are optimally mated, and run with it.
The previous advice to stick with 1911, become ingrained with the 1911 muscle memory, and refine one's skills based upon, and only upon, the 1911, makes excellent sense to me.
Yes, I understand that the Series 80 and above use the firing pin safety, and I have shot them. I think it's just a learning issue. Once it's familiar, it's a non-issue.
Only quibble, it's not a backup piece. There are some smaller 45acp's and if I was down to my last whatevers, any inconveniences inherent in using one of them would be a distinctly secondary issue.
Greg