>Let's be honest, you wouldn't take a fight against him, let alone prevail I wouldn't look for a fight against anyone. It would be interesting, I use my whole body as a weapon. If it's just fists, with rules, then I'd probably lose, he's much bigger, if there's no rules, then things change, because I can do anything. >The punch isn't "powered" by the opposite leg, as in push on your leg to power your punch It's leverage. Your leg is a lever, your thigh is a lever, your waist is a lever, your back, your shoulder and elbow are levers, if you crank down on all the levers the force is multiplied at the output point. When you swing a bat, or a golf club, the power comes the same way. It's counter intuitive, 99% of people's striking technique amounts to leaning into the punch thinking it adds power. This is fine if you want to be weak.