RE: QQ Yak
Chris,
This airplane is hard to get into the knife edge spin as it wants to go into a flat spin easily. I usually go up high inverted do a inverted tumble when the airplane losses all airspeed and slows down keeep all the same inputs in( down elevator right aileron and right rudder) you will then have to reduce the aileron to get it into the spin. After entry add back the aileron. This is all about the right sequence of events at the correct time.
Hob,
This airplane is a great 3d airplane. Even more then that it can fly precision with the best of them. A very light airplane at 26.25 pounds with cans in it which makes it have a super light wing loading.
Andrew