I don't do "conditioning." But I can break. It's proper technique, not how ugly your hands look LOL. Sorry. Couldn't resist. Anyways, if you use the right striking surface (IE heal for side kicks, ball of the foot for round and front kicks, ect), you don't need to condition. The only time I couldn't break is when I tried a roundhouse with the instep (speed break). OUCH! I'll never do that again. Oh and if you have sucky holders, use more speed as well as the above.