I always wondered why they didn't just set the bolster stats for a piece equal to the tier of pvp gear they just made obsolete. For example, after 2.7 goes live, make bolster give you the same stats as conqueror gear does now. They already know what trees we're spec'd into, and they already have the existing sets with stats to work off of. It would be like the old recruit gear, only they'd force you to wear it until you replaced it with one of the newer set pieces.