I find the guy a little long-winded. Spends too much time behind a camera and editing software, and too little working his trees. You would think he would not have time to waste on a forum but hey..
[thx for the connect]
In any case, I think this is the vid suggested, which I created to provide some background story on growing bonsai. No detailed techniques, but more, where to start, what to know before diving in. And then.. Dive In!
and
@mark-kramer@colo this part of that vid is articularly interesting for you I think:
(But repotting now is too late)