It's not hard to carry a full-sized 1911 for CCW, but it's not any fun either. I find the CCO (Commander slide on Officer's frame) to be the cat's pajamas for CCW if you like 1911s.
If all I had was a 5" 1911, I would not hesitate to carry it, and would simply dress around the bigger pistol. If you were ever in a gun fight, and had that big .45 in your holster, you would feel better prepared than most folks.