I'll do you guys one better - I don't move the spine nor the hara - I just use the old Ki Society extend ki out into uke to effect their movement - now if my ki is moving my spine, hara, or fascia, so be it, but it is the ki that is moving first
And how are you extending ki, Greg? From the peeps I've talked to from Ki Society, there's been some varying definitions of exactly how that works . . . let alone how it then gets expressed.