they must be very quick. they will want their muscles to respond very quickly. the question is whether or not their muscles are very sensitive; yet even if they are quick, they cannot attack at the correct time. this may only create confusion.
secondly, when these people hit others, they obviously hope the other feels great pain. in addition, these people often want their muscles large enough and strong enough to absorb the pain of being hit by others. the question here is during the attack, if the timing is not correct, they will use a lot of strength but will hit empty space. if you make a defensive gesture at 