hey all! im assuming that you all have heard of "sine-wave" being in ITF, and "Hip-twist" now ITF over the years has started to put a lot of emphasis on the sin-wave part instead of hip twist, and i believe this is not very efficient because you get ALL of your power from the sharp twist in your hips. if you practise hip twist correctly you will get a natural sine wave. so i believe that sine-wave is a byproduct of hip-twist. what are your views/opinions, im open for debate. Sine-Wave or Hip Twist? Thnx Much!