Nice clip. Notice how Saito sensei doesn't step back but moves to side and at the same time drops a little and get under uke. Easy in gotai, much harder in jutai or ryutai.
What he does is so damn logical that it makes me wonder why I never thought of that in the first place. Then again, that seems to apply for the whole of aikido.
Well, guess I just added a new form to my repertoire! The more variations, the better!