I've read on this thread that, the way to recover from a "dropped wing" stall is to apply full rudder. I'm a pilot in training and was being trained by Terry himself, we never practised that stall. Having said that I recall Terry mentioning to me when they first bought the Brumby and flew it in to Penfield, the rudder wire snapped on the way.
The school had it repaired since but when I read about the stall recovery manoeuvre, I couldn't help but think about that incident. Could a rudder failure have caused the crash?