Well, I can say, having just gone through a week at the Ozark School, that I appreciate a class where the instructor doesn't just show you how good he is. We had lots time to practice the techniques after getting very good demos from Tsur. Since the Hofi hammer technique is not tipical, Tsur made sure that we really understood it and used it rather than falling back on what we were used to. It was a week very well spent for my 16 yr old son and I.