Just goes to show you that different body shapes or experiences will give you different answers. While I am sure that there are plenty of good OWB carry rigs out there for the 1911, I have had VERY good experience with IWB carry with a Series 80 Gov't Model and a single-loop Milt Sparks Summer Special. I carried the gun (IWB, of course) at about 3:00 o'clock inside blue jeans, or occasionally inside dress pants. A good belt was preferable but not critical. That Summer Special rig was the one that I always knew I could depend on to remain wearable even if it turned out to be a 16-hour or longer day.
BTW, I have an equally accurate LW Commander which carries very comfortably in a Mitch Rosen OWB holster with a good belt, but, much to my initial surprise, the shorter barrel is NOT comfortable IWB. The muzzle digs into my right buttock, whereas with the GM, it is only the flat slide which presses on my buttock.
I consider the 1911 an excellent and practical carry gun. I got away from it because I was carrying a revolver under slightly unusual conditions for about seven years, and was more in practice with same. When the conditions changed, I didn't want to go back to the 1911 until I was using it regularly. Meanwhile, I got used to carrying a revolver OWB, and occasionally in a shoulder holster, and kind of got spoiled by what I consider a much safer system for loading or unloading (or neither) inside my house. So I carry a revolver at present, but I would have no problem getting back to carrying a bottomfeeder. And I'd have a J as a backup, anyway.