My point was just that even if someone came in without any instruction from me, but had learned the basic movements from a video, I could still work with that. I keep the kata work pretty simple and straightforward. Thus, even if someone gets the intent entirely wrong, if they are moving with balance and coordination through an approximation of the moves, they are a step ahead on that work.That isn't what I am proposing. And BTW, if my Master were to make his own videos as a teaching tool, that would be absolutely fine. And that is all I am saying. Learning is a process of give and take, so clearly a person who learns exclusively from a book or video will have some shortcomings because bad habits become engrained. If this kid learned the basic pattern and movements, then had to have an instructor make some minor corrections, he is still ahead of the game, IMO.