Re: The Founder's Teaching Ability
Carl, I would say he was O'Sensei (great teacher) for many reasons. He was the founder, a new leader of a new art, admired by others of other arts, a phenomenon in himself, adnired and respected on a government level, almost deified on a shinto (omoto) level, afforded the honour of national treasure on a government and nation level, attracting great interest on a worldwide level, etc.etc.
As to teaching? When you look at him as a great keeper of national tradition and culture and identity despite Americas attempts to change it then you will have to notice that there was culturally and historically a way of teaching such martial disciplines. As quoted here many times, not spoon feeding.
He thus taught as was traditional for masters to teach and as students of such expected. Part of that way was teaching extra to maybe uchideshi or those 'behind closed doors'.
Westerners not used to this get all suspicious and talk about holding back and not giving the real goods.
Thus he taught as all great teachers in the field had taught before, with his own flava of course, ha, ha.
The benefits of this way are probably totally missed by the western mind, or indeed other types of mind. Maybe a great teacher knows something and that something is he isn't a babysitter.
Good students will follow him. Other students will admire but question him. Great students will understand him.