what I do, is set master looter to the booster, and set the booster to "pass on loot" and set the threshold to blue, then the only lootable mobs are ones that drop the blues, making cherry picking the loot much easier. Especially in places like SM or SFK that have rare BoE drops that can sell for a lot of gold on the AH. I still have yet to see the Scarlet Chestpiece... and I have boosted over 2 dozen toons through SM.