Re: Interview with Yoshimitsu Yamada Shihan: The Free Mind
Interesting to me is that some (all?) koryu seem to have separated the positions of ceremonial head of the ryu (soke) from the primary teacher of the ryu's skills (shihanke). This might make it possible to pass on the leadership of the organization to one person who might have those skills (or family relationship), while maintaining the quality of the art by passing the teaching responsibility to another person who might be the best technically.
I don't really know anything about this system. Anyone care to elaborate on it? Could it be used as a model for Aikido?