I totally agree with your idea of improvement grace. Of course they are still nice in the 20s, but less competitive with even actual randomgear, which should not be for such heavy farming investment that they are epic and rare. My suggestion was to implement some mechanism that let us upgrade the epic Version to a legendary version ML28 for higher content. Or the like. This could make it much more interesting to run the good old quests and raids and get us more grouping.