So if you are making that argument than I say that it is an advantage to fight in the heaviest weight class and not cut to get to lowest weight class. Look at Anthony Johnson. Aside from DC, he murdered everybody at LHW. No need to cut a lot of weight anymore, right?We're seeing people moving up weightclasses and being very successful nowadays, did people not try this before or is it working now because technique, training and game planning/strategies have come so much further?
Here are two fighters who moved up and became champs, DC too but he was HW from the start, and size at heavyweight is only an advantage up to a point anyway.