Could we have a way of narrowing the item drops for things like dungeons so we won't have to farm the same dungeon over and over again for that one piece we need for a really cool glamour set?

Maybe if we kill a boss several times in a row the loot table gradually narrows down until we get the item we want or maybe our retainers can get loot from specific sources?

I'm just really tired of farming the first boss of Qitana's Ravel and getting everything except the Aiming pieces...