Mucho many years ago, at a gunshow in Alpine, Texas, I traded into a Series 70, 1911A1 in 9mm. Didn't hang on to it long enough to find out if it shot accurately or reliably. Some damn fool had enough money to convince me I didn't need it. I took the money and ran. Ran right into a joker who thought he needed my money more than his Colt 1917.
So, no, I can't "advice" you about the full size 1911, but I can tell you, without reservation, that the Combat Commander 9mm is one of the most reliable and accurate handguns I've had the pleasure of laying my hands on.