I don't think B-Hop is juicing.
For people who watched him, you can literally trace his regression starting from Trinidad all the way to now. Every single fight, from a athletic/physical stand point he regresses a bit more. He won his big fights after Tito due to his natural boxing abilities/cunning and he fought fighters who is tailor made for him.
It's not like he suddenly knocked out Chad Dawson ala ward style at 175 lol.