His frame already looks to be sorta maxing out. I'd say he should not try to go above 126 or risk losing a bunch of speed and power.
Just because Pac can gain shedloads of muscle and go up loads of weight classes doesn't mean Donaire can. It also depends how much Donaire is draining at the moment, Pac used to drain down about 3weight classes
also doesn't mean he needs to...he can do just fine actually staying in a division for awhile although, it may be hard for him to get a fight 118 on down
Well he is 5 7 and has a good reach so maybe featherweight??? He is 27/28 now so his move through the weights will be a little more limited than if he was 22/23.