nwohioguy and Sensei Scandal have covered this well.
phociny... and avatar, you really need to lay off answering when you clearly don't know what you are talking about. nwohioguy, Sensei Scandal, and I have all been doing martial arts for more years than most on the MA section of Y/A. we give answers when we know the subject from study and practice for many years. No offense, but you guys need to research and train more before giving incorrect information to others that are trying to learn something.