Bill,

I have the 85" QQ Yak, DA-50 spinning a Mej 23x8 prop. Elevator throws are about 55 degrees. Rudder is around the same throw as well. I am slightly behind the aft recommended CG point (still flies great).

I tried different entries. First few times was the stall turn entry - got it on its side, reversed rudder input, full down and it tries to enter then rolls on its back and does a gorgeous flat spin.

Tried with a downline tumble entry which seemed to be more successful (downline, sticks upper left then slide out of the aileron) - spun 2 or 3 times and rolls over into an inverted flat spin.