For the record, your statement listed above is erroneous.
BTW, Mark.... if Ushiro is teaching kokyu via Sanchin kata to Aikidoka, can you explain why the type of power developed is the same, for instance, as the "soft" methods that Tohei uses in his style and that Ueshiba espoused? That might be a better approach to your argument than anything else.
Do you understand why the kokyu developed in Sanchin is different from the kokyu developed in, say, Tohei's approach? Incidentally, this relates to some earlier comments I made about the different approaches to internal strength, particularly in a discussion about "teachers" teaching too soon what they themselves are just beginning to study.