I don't think Floyd had to cut weight for that bout. His first bout up at 154lbs, he probably just had a normal training camp with the advantage of not having to worry about his weight. No point gaining another 4lbs just because you can, he would have wanted to keep his speed.
He doesn't like to dry out, Floyd Sr said lil Floyd never tried to make 144 because he'd have to dry out to do so. He'll cut the weight naturally but if he has to dry out he won't bother
So Shanes going to be the naturally bigger man come fight night, PBF will fight on the back foot all night anyways and hopefully outbox him en route to a UD