The first 1911 I owned was a nearly-new Gummint Model, ex-military. "Stock as a stove". For some fifteen years, until it was stolen, it never malfunctioned. Dunno; ten thousand or so rounds through it. I set it up for early 1980s IPSC, a few thousand rounds into its life, and it continued to function flawlessly.
I bought a LW Cmdr in 1980. Flawless performance, before and after extensive work. Same for my Delta Elite. Same for a "Combat Government", whatever that means. I do all my own tweaking, and so far, no flubs.
I had some version of a Glock in .45ACP. It shot okay, but it was awkward in my hand compared to the Colt. Since it was ugly, I took my profit and smiled. I have a Beretta 92 stainless. Shoots fine, but it feels bulky. It doesn't get used very much on account of that.
I've meddled around with a few dozen other 1911s and A1s. Never had a problem. It takes trivial tweaking to make them feed any ammo of whatever sort.
I guess I just don't understand the problem.
, Art
. The three strikes rule applys here, I won't be buying another. Now the only 45 I own is a Ruger P97. And for under $400 out the door (tax, reg fees, everything), I have a 45 that's very accurate, brute strong, and eats ANYTHING 
from primo stuff to garbage wadcutters. The only other 45 that was "almost" as good as it that I've own was a SIG P220 which aren't cheep (I still regret selling it 
) and a Ruger P90 which was also reliable but accuracy was so-so and the trigger was crap. There's alot of other great 45s out their (HK, Glock, etc.), but double stacks don't work for me which is why I never purchased one. Sorry to rant so long, but I'll never buy another 1911 (even Kimber) when there's sooo many great "out-of-the-box" guns.