There are many variations of funakogi undo. MANY. So there is no one right way.
yes, my sensei also said that O Sensei used to teach many variations of the same techniques. but isn't the main principle supposed to be the same?
and also, the movements that intrigued me the most are the ones on 3:30 to 3:40 because I have never seen any shihans teach those movements.. anyone care to explain those movements for me? please?