Re: Book from koichi Tohei
I know you asked Clarke this question, but I'll step up. I think you should read anything that comes to you. Even from different traditions. Focus on it outside of class first, think about it, practice it as you can. Try doing the basic movements in yoshinkan with that same feeling you get from the exercises portrayed in the book. Explore a little. Seems to pay off in the long run. You may not keep everything the book talks about, but if you find one thing of value, seems to me to be worth it.