Wow, some good stuff here - just another good example of an independent source providing more corroborating documentation supporting the views of the IP/IS crowd. Why is it that those with dissimilar views cannot see this and/or provide the same level and type of documentation supporting their views on aiki and other aspects of Ueshiba's Aikido.
Why can't they? Because the stuff presented here is written in a vague-enough way so as to be intepreted on many different levels, depending on where the reader is coming from. Every word can be read and result in a chorus of "we do that, too!" The distraction of writing about external movement, or movements that can be interpreted as external, without any detailed explanation of the underlying drivers will never serve as proof of anything.
Again, "Watch my hands! At no time do they leave my wrists..."