Hello,
I agree with Cady. I do not see any evidence of internal training and you can do the slow kasha waza exercise in any case. Doing such an exercise reveals no evidence of internal training and I do not usually teach kaeshi waza like that. I have same dan rank as Sugawara (though mine was given by the present Doshu), but I do not claim any expertise in internal skills. However, one of my Dutch students is an enthusiastic member of the Aunkai and came to my recent seminar singing the praises of a recent workshop with Dan Harden. Such training also shows in his aikido waza.
Best wishes,
Peter Goldsbury,
Forum Administrator,
Hiroshima, Japan