I am a koga ha kosho shurei ryu kempokist and I am courious about a few things. The octagon is very important in our system it is the way we move. We also use Koppo strikes and I was wondering if anyone else out there uses it and what your usage of the octagon is. Also we are taught what the affects of our strikes, misdirections, and leg punches can do to the body and there legal remafacations. is anyone else out there teaching there students this infomation? Koga Ha is the only system I have studied and I am not very knowlagable on what the other systems are teaching. Please enlighten me