Re: right way of doing sitting kokyu-ho
Most people talk about kokyu-ho from the nage's perspective. Well, what about uke?
IMHO, uke should also be practising their kokyu and center connection as well. Especially when your balance has been "taken", you as uke should be using kokyu and center to get back up and/or off balance nage from the ground position.
Unfortunately, most uke think that when they are off-balanced, that is the end of the exercise. They disconnect and then everyone re-adjusts their seated position and then start again. Which IMHO, is incorrect.