I don't know. I've seen some pretty startling recoveries in Judo matches. 30 degrees is pretty far, but I'd have to see where their feet are and the distribution of weight.I always believe if I can put my opponent's body into a 30 degree angle, the gravity will do the rest of the job for me, and I don't have to finish the throw. This way, my opponent doesn't have to deal with 200 impact on the ground daily. My training session can last longer.