Whilst by no means an expert, I have flown a couple of stalls in the Dak and I can tell you they get your attention. The end result is a huge nose down pitch (probably 40 deg or more if memory serves) accompanied by a significant wing drop. Why it does this I cant remember, although I'm sure I was told. Maybe the eliptical type wing (just a guess). Some of our aero wizards should be able to elaborate.
The rev