That is an awesome form. It's the same video I have in the very first post in this thread.

Whoops!
How could I miss that?

Awesome form indeed. I'm sooo learning it next time I go to Tianjin.

I wanted to comment on the two hands on the staff thing. One hand on the staff works just fine for techniques where the other end is braced against your back. There is also useful one handed techniques where you hold the staff close to the end with one hand and make long sweeps (do not have a ridged wrist with this). There is also a series of attacks and defenses where one end of the staff is planted in the ground and the other is cupped behind the staff (staff is vertical).

Here's a couple bo kata that I did for my shodan test. It was a very long test, so you'll have to excuse my fading.

Oyadomari No Kon
http://www.youtube.com/watch?v=zu-obRjA33U


Chatan Yara No Kon
http://www.youtube.com/watch?v=saF0tlJtFiE


I have a total of 8 kata on youtube - 4 of which are kobudo

Interesting. I haven't been studying Matayoshi kobudo for very long, but it seems to entirely lack a technique I see in your bo katas. The repeated circling...is that technique meant to be a wrap??

Thanks

they're parrys to counter thrusts to the chudan or jyodan area.

My eyes aren't so keen...thought I was seeing circular motion of more than one revolution...and hadn't seen that before.

Shorinjiseisan,very interesting kobudo kata.The first one would not play well for me but the second one(Chatan Yara no Kun)worked very well.It appears to be a version of Tokomine no Kun to me,very small differences.
A funny story:A guy from an American kempo school was at our dojo and demonstrated a bo kata for one of my kobudo sensei.In his kata he did similar circular techniques,when my sensei questioned him about those circles he stated he had been told that technique was to represent"searching in the hay".My sensei replied"Hmm thats odd there's no hay on Okinawa"
I have to agree with Harlan,one circle could parry and throw,trap or redirect the bo.Multiple circles are new to me.
Tom Hodges

There are similar multiple circling actions in my kug fu forms. However we were taught to practice them differently, primarily moving the rear arm while keeping the front hand more fixed (also, the grip is with both hands palm down, instead of one up and one down).
In my experience, the multiple circles happens sometimes as a way to attempt to control the opponent's staff until you can make a decisive strike.
For example, your opponent thrusts in at you, and you respond by deflecting and circling out of the way. At the bottom of the circle, you feel him prepare to swing back up at your head, so you continue the circle deflection down again. This could go on until you feel him withdraw, or he loses control opening him up for an attack.
This isn't a great description, it's something you sort of have to feel. It's like sticky hand sparring with a staff, where you use contact with the opponents staff to read their intention and follow them into an appropriate action.