I can conceal a full sized 1911, and often do. An Officers sized grip frame does make it easier though. Is the increase in concealability worth losing a round of capacity, 3/4" of barrel, and a little shootability? It depends. I generally carry a full sized 1911 during the cold months, and a CCO (Officers grip frame) during the hot months.
I'd be a better listener if you stopped talking about stupid crap that doesn't matter.