Re: The "Jo Trick" and Similar Exercises
I think one has to be careful when suggesting that the uke is "helping" O-sensei. Sure he's holding the jo in a ridiculus place, but beyond that I think it's genuine. The human aspect of the "trick" is powerful: For a start the uke probably has great reverence for O-sensei, and hence probably does not believe that he can actually shift the jo. Also, this belief will be reinforced when he tries to push the jo and is surprised by how ineffective his efforts are. Again, I imagine this would lessen his will to give it everything he's got.
I dunno, maybe that's all just rubbish...