My contention here isn't that weight doesn't matter, it's rather that a lot of UFC LHWs and MWs aren't *actually* smaller than UFC HWs, it's just that they take the effort to work off the body fat, diet down, and cut water weight so that they could make 185 or 205. Meanwhile most UFC HWs give 0 f-cks and just walk around at full obesity at all times. So if UFC MWs and LHWs stopped trying to control their weight, they'd be the same size as most UFC HWs. Their success then would boil down mostly to their level of skill.