I think Floyd might be flying too close ot the sun if he choses to go up to MW or SMW. Floyd said himself he woke up the day of the fight at 146, which means that he's not cutting weight for WW, so he most likely is a natural 140lber. Going up and taking the 160lb punch, especially from a guy like Golovkin, would be murder. Even if he's taking it on his arms, physically I don't think he can stand up to that kind of power and I don't think he'd have enough power at that weight to keep guys from charging him.