Originally posted by Chocolateuke
We are talking about Urshiro which is sixth sense.
in shizenkai we have a whole set of throws that are Urshiro waza which consist of the tori attacking behind the back. ...
Techniques like ushiro tekubitori kotegashi and ushiro tekubitori ikkyo might be practiced with someone holding from behind. However when the uke attacks from motion, I've always practiced that the uke attacks from the front, grabs one hand then circles around the back to grab the other hand.
I've always been told never to give someone your back, in other words never
allow a person to attack from the back. Even the urshiro techniques are only done to develop awareness behind you. You should not really let this attack from the back happen. This is especially emphasized during randori.
Maybe this is a difference in teaching style?