As much as I hate to admit it, at this point an MMR system that avoided matchups between high-disparity fights is almost worthless. There just aren't enough people playing PvP in this game. I'd wager that on PCNA for any given primetime there aren't a thousand people engaged in PvP-related activities across the whole of the game. With numbers like that it's going to be hard to find enough people in for match making to really work without exceedingly long wait times at the upper end with basically the same fifty people pooled up in every match - which kind of already is the case from what I gather anyway. I dunno. I stopped playing BGs a long time ago. I barely play at all as it is.