Welp, I cast my net a bit wider and searched for good Tai Chi and Xing Yi instructors in the Tokyo area, but it seems that finding a good teacher in these arts is even harder than finding a good Wing Chun teacher (which, I guess, should be expected, since WC is comparatively more common). I've checked out all of the "low hanging fruit" (easily found with a google search) and haven't found anyone who I was particularly impressed by. The space seems to be filled with... less than reputable types. So, I thought I'd ask here: does anyone know of good, reputable teachers of internal styles (Taichi and Xingyi, in particular) in the Tokyo area? There's got to be some lower profile people who are legit and practice in the park or something.