I think PBF is smart, I don't think it is a case of old and new PBF, rather he adapts to the fight,tried new things when he knows he can and dam staright, he is one of the most versatile fighters. If you watch after fight interviews with Floyd's opponent's,most say he hits harder than it looks. I think if he ever were to fight Margarito, he would be on his bike but if it's someone he knows he can over power,why run?EG Mitchell etc. Interesting to see which tactic he uses against Zab,mixture of both?