Gotta reserve any "judgements" until we finally get broadband next Tuesday and I can actually watch the video. Trying to do that on a dial-up connection takes, like, an hour to see 3 minutes of video.
All I can say from personal experience is that both my Springfield 1911A1's have run 100% with the factory, Mec-Gar and Chip Mc Cormick mags. And that I personally ran nearly 2300 rds of assorted ball and JHP 230 gr. .45 ACP ammo through my stainless Champion in one 5-day Defensive Pistol course at the Chapman Academy without a single malf which wasn't deliberately set up for a "clearance/emergency action" drill.
To each his own. Maybe someday I'll make the switch to some sort of "drastic plastic", but for now I'm just fine with my antique 1911.
Seems you're another lucky 1911 owner. I admit I haven't run mine too hard but my springer has been 100% with all types of ammo. My glock 26 has actually jammed more...but only once. I figure 200 to 300 rounds per range trip with 0 malfunctions is just fine for carrying.