RE: Kangke Waco Biplane
A friend we fly with has one of these planes, maiden flight took place last week. He used a ZDZ 40 for power. This seemed like a nice combo. We haven't weighed the plane yet. I know one thing we noted during the initial flight was the fact that the rudder was super sensitive. This made ground handling hard also. I believe he dialed in 50% Dual Rate and -30% expo to make the rudder more friendly, of course all pilots will vary on this.
The plane looks great in the air though, I didn't notice any bad stall characteristics either. I'll try and get some pics posted later this evening.