This is completely wrong btw. No power ever comes from the right. That is why there are warm up exercises using katate (single left hand warm up) to loosen an

This is completely wrong btw. No power ever comes from the right. That is why there are warm up exercises using katate (single left hand warm up) to loosen and focus on your left. It makes no sense for power to come from the right as fumikomi (the leaping motion at the time of the strike) is done using your left hips and legs.