Everyone has spoken the truth (well, cept that AR15 post above this one). I have 3 1911s - a full size 5"; a Commander size 4" and an Officer size 3" - yeah, I could CC them but, except for the 3" which is not too hard to CC, the other two are not really conducive to what I want to do. Even though I do have a Crossbreed Supertuck for purposes of CC I don't do it -I open carry them in a Blackhawk Sherpa when hunting and open carrying a gun doesn't attract any significant attention. The other thing you will have to overcome, and touched on already, is the weight. Those things are all steel and, as such, heavy. Not too sure why you would want to try to CC such a beast of a weapon but I'm not here to judge - you have to do what you have to do for you! If I were to be making a decision to EDC something that large and heavy I would go the route of a shoulder holster.
Please keep us informed and thanks for sharing your story with us.