This is an excellent observation. This is why the following 3 requirements are important:
- Your run down momentum.
- Your Tinjin (sensitivity) from you and your opponent's body contact.
- Your ability to reverse your throwing direction.
When your body is moving along with your opponent's body, you will need to sense which direction that he intends to resist. If you feel strong resistence against the direction that you are moving to, such that you feel your right arm can't make his body to bend to his right (collapse his structure), you will immediately reverse your attacking direction. You borrow his resistence force, your under hook arm then quickly slide down below his left knee. You then use your head (or left hand) to push his upper body to throw him backward.
Most of the time, which direction that you will throw your opponent is not up to you, but up to which direction that your opponent is going to resist (or yield). You then borrow your opponent's resistence force and add your force to achieve A + B > A. Just make sure that your reverse direction throw doesn't require too much "hands position change", because you don't have much time.
When you reverse your throwing direction, and you can still feel strong resistence (your opponent can react to your force very fast), you can change back as A -> B -> A. Who is going to win in that sequence depends on who has better skill.
I don't have clip for that. Here is a picture.
http://img52.imageshack.us/img52/169...ekneeseize.jpg
Also when you move forward, you will have chance to use your righ leg to attack his:
1st side - the outside of his left leg (foot sweep - Kosoto Gari).
2nd side - the inside of his left leg (leg twist - Kawazu gake).
3rd side - the inside of his right leg (inner heel sweep - Kouchi Gari).
4th side - the outside of his right leg (front cut - Osoto Gari).
Before you can reach to his 4th side, you will have 3 options to attack by using differenct throwing technique.
Depending on your Tinjin, you can also move infront of him or behind of him (instead of across of him). Your hand can also change from under hook into waist surround and attack his:
front door - infrontof him (hip throw - Koshi Guruma)
back door - behind him (embrace - Ushiro Goshi)