Fedor's punches still have pop, power is the last thing to go - ten extra pounds doesn't mean shit for that. Just like ten extra pounds isn't going to make a difference on the ground with a massive guy like Mir.
His big asset going into this fight was speed, so ofc he comes in fatter than ever and at 240lbs - genius move, really. But whatever, I'm a BJ Penn fan for fuck's sake, so I already know the pain of seeing a guy fight well past his time. Fedor is a legend, but right now he's a chinny, pudgy brawler.