I am not convinced that any production 1911 can be guaranteed reliable.
The guns are all made on machines and tool wear means they all come out different - if only in the smallest way.
Semi customs are built more the way the original 1911s were built - one at a time, everything fitting properly.
Oh yes, there's the other part of the problem. Modern 1911s tend to be fitted so ridiculously tight you'd think they were trying to make 'em waterproof. The 1911 was never supposed to be that tight, and they're not normally going to give "bar none" accuracy if designed as a fighting tool like they should be. But we gun lovers expect, no, DEMAND match-grade accuracy out of 1911s so the makers aim to please. The result is a design that is now built to win trophies, not gunfights.
Again, another myth.
Of course, everyone discounts the idea of getting a $1,200, $1500 or $1800 1911 because they see a gun that looks about the same for $550.
If you want a reliable production gun, bou a Sig or HK or Glock - those guns were designed to be manufactured.
The 1911 was designed to be made by a person.
My Valtro:
1. Hand scraped and EXTREMELY tight.
2. Guaranteed 1"@25yd accurate (don't ask me, I cant do it)
3. 100% reliable with FMJ, LRN, LSWC, LTC rounds - in cheap Mec-Gar mags
4. Well over 1000 rounds between cleaning - zero malfunction.
Double, maybe triple what a "ordinary" 1911 costs, but then - what is total reliability worth?
I was extremely disappointed in the fitting on my Colt Defender - it looked like it was made in high school shop class. Never ran right - although much improved after a few changes.
I would rather have 1 very reliable, well made, accurate, digests anything with any mag pistol, than have a box full of "also ran" guns.
I subscribe to the Cooper ideal of having your own "Personal Weapon" that you keep for life and that you trust and maintain and rely on and ultimately, hopefully, master.
So in the 20-50 years I hope I have left, what is an extra $700 or $900 amortized over my lifetime to be sure?