Well, one way to get the nose to drop is to roll on bank. Some years ago an A300-600 got airborne with c of g aft of the limit, and the pilot, having run out of other ideas (elevator/stabilizer/flaps), applied 40 degrees of bank and flew around in circles until the fuel could be transferred to remedy the problem. Sounds bizarre, but it saved the day. Of course, if this doesn't work then you're probably headed for a spin!
Just goes to show how important the trim sheet is.............