I know I'm going to take some heat for this, but here it goes. I studied Kenpo for about eight years before many of the people on this board were born. Most of what I was taught was useless in a real fight. I was taught to cross my legs when delivering a strike or kick, arm punching, face rakes, animal sh*t., etc. Boxing and wrestling are probably the most effective self defense systems around. KISS - keep it simple stupid.