One thing when your airplane does the funky chicken...let go of the sticks! We usually "control' it right into the ground and never give it a chance to resume flying. Once you let go the problem usually goes away and allows us to fly out of the unusual attitude. I've used the technique in real ones and models both. I had a T-43 (B-737) stall (unintended) once on maintenance check flight and it rolled upside down. I let go of the yoke, the nose dropped and let the airspeed build. Once above the speed where it stalled I rolled upright and recovered. It was so much fun I climbed up and did it again. Oh, yeah, it failed the check.