Love my 642 for this exact reason. DC is cold and a trench coat over a suit makes access to a full frame impossible. The hammer-less 642 is perfect for this. If you leave your bottom buttons open slightly you can shoot through the inside lining without destroying the outside of the coat. With your hand in your pocket you can even engage someone who has the drop on you...especially someone stupid enough to bring a 1911 to gun fight and not cock the hammer.....trust me on this. Can't however use a pocket holster. I now can shoot through my pocket without making a hole.....due to ones now there from last time. It does catch the felt cloth on fire a bit.