Tanden vs. one point
From what I understand, Tohei sensei uses a definition of "one point" (seika no itten, I assume), which is quite his own - or at least far from the traditional meaning of tanden, the center.
I have seen the term seika tanden - what would that mean, then?
Tanden, with its kanji components to be read appx. "the red rice field", is traditionally regarded as a center of great power. Most budo that I know of, traditionally teaches to do all movements with tanden as the base and the "motor".
PS: Jun, I'd love to see icons for tanden in kanji - but that's probably just me...