M Stevenson,
I got the sr1911 10mm a while back. Really like the pistol. Other than changing out the front sight I've done nothing. While I haven't shot it a ton, I bet I've put maybe 1,000 rounds through it and only had 3 malfunctions. Those malfunctions went away with an ammo change. It's digested all my handloads including the lehigh penetrators, which really surprised me. Awesome deal for a quality 1911 in 10mm from my standpoint. I own the G20 and have shot the G29 a decent bit as well. Both of those have been dependable. Not a dis on the Glocks at all, I just shoot the Ruger better and enjoy it more.