Its always weird hearing about ''old'' wrestling - in the 80's I was just a kid, I had no idea about wrestling - I kinda forget wrestling existed before...well for me, about 1998....
..and the stunner is a great move, and presumably smashing someone's head into your shoulder would be fairly deadly. The stunner is the best of those 'type' of moves - RKO, diamond cutter, gringo cutter etc - stunner is the winner