Personally that bast*rd Castillo weighed in on that weight on purpose.
He didn't want to lose muscle and wanted to come in great shape.
Didn't want to weaken himself so that he could get TKO'd by Diego again.
3 weeks before the fight are enough to prepare for the weight loss.

He's too big for 135 lbs and barely makes 140lbs. He barely made 140 last time.
Why not move to 147 and save everybody the problem of
worring about his laziness and irresponsiblities.

I'm this harsh for good reason. Castillo and camp had an unfair advantage in
the rematch AND tried to cheat at the scales to give Diego another beating!!!