Re: Alternative Method fo Sankyo
I'd say the main differences are how the basic principles of the lock are applied. Uke's arm never really moves off of centerline (because of sequential locking), Uke's wrist is never really torqued (because of secondary/indirect pressure), Uke's body doesn't move around Nage(centriptal motion, not centrifugal), Uke can't rotate to release the tension (because of equal weighting), Uke can't strike or kick (because of cross-extension paralysis), and there are no wasted movements or big circles. Plus, Uke's entire body is locked up, not just the arm.
I'm sure it's nothing new. But, it differs in the approach when compared to how many of the Aikido schools I've been to teach and practice it.