I think he should stay at 147, the winner of the 140 tournament will outgrow 140 soon anyway as they are all young guys (Bradley,Alexander,Khan,Maidana).
Berto can be at 147 and welcome them into the division, no need for him to hurt himself trying to make weight. Judah? fine I'd love to see him at 140, he's a small guy, Berto? He looks like a full fledged Welterweight.