Well, like termic said, you shouldn't be too relaxed, and if you're going to land try not to make a sudden stop like if your elbow is contracted and then you extend it right before you hit the ground, it will cause a "jerk" or whatever. I'm not really the explaining type of person so, just keep making some more replays and I'm sure you'll figure out what's wrong. I would also suggest looking at some pro replay makers' replays like akumazzz or largekilla. Good luck man :]