I didn't reload when i was shooting my 9mm 1911 and ran tripp cobra mags flawlessly out of my sti sentry. I only had 2 malfunctions out of 10k rounds and one was with a wilson etm magazine (others have had good luck with them) the other was with a bad factory round.
If i do decide to get another 1911, i will pick it up in .40 and would buy tripp mags in a heartbeat