"...the art of manoeuvering armies...an art which none may master by the light of nature. but to which, if he is to attain success, a man must serve a long apprenticeship." -- G.F.R. Henderson
My club did it, but it works better with clipped counters so that they fit neatly. The reason why is that in ACHTUNG! SPITFIRE! (and all FIGHTING WINGS games) the aircraft diagram faces towards the counter corner, whereas in AIR FORCE/DAUNTLESS the aircraft diagrams face towards the side of the counter square.