Akuzawa sensei can "tug" on his skin and it doesn't look like flexing muscle. I haven't had the opportunity to ask him if this is the same mechanism that Mike Sigman talks about in terms of tugging on the arms via the middle in silk reeling or not. I would assume it is related.
While Dr. Schliep did state that he gets messages from martial artists around the world looking him to validate their "super powers", Dr. Schliep also stated that it was his opinon that Akuzawa sensei and others like him likely have some sort of "hyper conditioning" of the fascia in correspondence to an aikiweb member .
Can the aikiweb member post the correspondence here?