Inspired by Yury Tikhonovich and his one arm muscle-up in this video: http://www.youtube.com/watch?v=Xj48SlxgU1Q I wanted to try a similar skill on the rings. As you see, I try various grips for the pulling and assisting hand. Like Yury, I kick into it as well. If anyone can do the skill without an assist, post it on Youtube!! Have fun with it, and good luck with all your training!
