Unfortunately, there is no (fight) footage of Walcott to gauge his style totally. He was a very dangerous man, however. This may depend on whether Hank could totally avoid, and be able to take, the Demon's power. Considering what Walcott did in his career, I would say not. Armstrong was a natural 126 - 135 pounder, and had an underrated defense. However, Walcott was THE classical one hitter - quitter; freak phenom. And he would land atleast once. One of the most underrated p4p fighters in history.