a tumble??? nose over tail?? that'll confuse'm alright..haha...they will be confused as to what target to hit next after waxing you. you would be better off kicking it into a spin if you want that kind of maneuver...much more easy to recover. but you are basically dead in the water and easy picking if your aversary has distance on you. a tumble, i dont know if you can get into one...maybe in real or sim... the stuff is fun to mess with in a non combat situation...
but here try this:
The classic Lomcevak is entered from a 45° up line, at cruise speed or below, with full throttle applied. To begin the maneuver, full right rudder is applied and held simultaneously with full left aileron and full down elevator. The response varies considerably from aircraft to aircraft, but the usual result is a graceful end-for-end tumble on all three control axes, finishing with the aircraft in an inverted spin.
http://www.fightercombat.com/the-lomcevak/ <<,video of it