Rump is considered to have more flavour than other cuts and is a tender, good everyday steak taken from the lower back of the animal. Key insider tips: It's recommended to grill and slice before serving. Wagyu is best served medium to medium well.
Wagyu is full of finely flecked intramuscular fat - this fat is full of intense flavour, and melts much closer to room temperature than regular fat.
Wagyu steaks benefit from being cooked slightly longer than regular steak, so if you like it anywhere from rare to medium-rare try cooking it to medium so that the marbling can get a chance to render down to create a tender steak.