Am I the only one who has noticed a trend back toward centerline with advances like C3 and the transition of universe focus away from the Clan front? IS forces don't generate the same lethal long range fires that the Clans do. In that context, mediums are much more viable and, given the lack of 6/9/X in the heavy weight class (admittedly more than before the Clan invasion), there's not that many options for fast attack / heavy recon. Centurions, Legionaires, Dervishes, Phoenix Hawks, Trebuchets, etc etc... while they are indeed still more vulnerable to fires than they were in 3025, still fill all those required niches. Pushing the weight class median North, while nice from an individual survivability perspective, also deprives units of key capabilities. I think that, with the LCTs, the rebalance of international powers, and the recovery from the Jihad, we'll see a shift back, to some degree. It just doesn't make much sense OOC to make the median mech weight over 60 tons, you just impose limits on the viable forces your players can field. If it is true that the median weight shifted up, then I for see a rebalancing back to the original distribution. Anything else would relegate whole weight classes to marginilization.