I understand your curiosity with the manuever called the Rolling Harrier, but the Beginner's Forum is not the proper place to discuss the execution of it. I would suggest that you ask your question in the [link=http://www.rcuniverse.com/forum/forumid_82/tt.htm]RCU 3D Flying![/link] forum. That is the forum dedicated to the discussion of 3D flying. Since this is not the proper place for this discussion I'm going to lock this thread so you can ask this question in the other forum.

Ken