Is it necessary to pivot your supporting foot or is it better to just step in and plant your foot, then kick. I know everyone always says to pivot but I've seen probably hundreds of kicks done with no pivot at all. They just step in and plant their feet and then power it through. It seems safer for stability since I don't like the idea of the only contact with the ground being on the ball of my foot. It seems very easy to fall over, one little push and you're done. And also, when you spin around like in Muay Thai, you turn your back to your opponent. This seems very risky.