In Shotokan we were taught to throw the side kick with the foot cocked to the side like a blade. It seems this is common to all of the Karate styles. I never liked this. It always seemed like a good way to injure the ankle. I always preferred to throw this kick with the foot straight, toes back and impact the target with the heel. All the bones and joints involved are in a straight line. My thinking is the same here as that behind landing punches with the index and middle nuckles (something from Karate that I like very much). This is also the way I was later instructed to throw this kick in Jeet Kune Do. My questions are; do any of you throw the side kick full contact with the foot in the blade position? What is your experience with doing this? Can anyone give me a good biomechanical explanation of why it might be good to throw the side kick the way it is in Karate?