Re: Taigi, Ki, and Time
The SoCal Ki Society identifies the tapes as being by Kashiwaya sensei. The dojo is clearly Ki no Kenyukai HQ, though; nothing else is that big. I have been told that the main uke is Shinichi Tohei sensei, Koichi Tohei sensei's son.
Taigi are a Ki Society tradition and you're unlikely to find them elsewhere, unless perhaps in one of the schools influenced by Ki Society. I can't find that anyone has ever published a video of the International Taigi Competitions, which is too bad--I'd love to see them.