I sometimes box like this too. For me, the Master Looter loots everything that is wanted. The non-looter has the checkbox off for "Auto Show Loot Window" (this window setting is on for my looter) and the checkbox on for "Auto Remove Looted Lore Items" (this lets my non-looter pick any one-time items after manually displaying the loot window). After the Master Looter picks whatever is wanted, that char then sets the "Set all to:" dropdownlist to "Leave All" (it can stay on this setting until I want it changed) and is clicked whenever I want all items on the loot list to be cleared and left on the mob corpses. The non-looted items are still on the non-looter's loot list until the corpses become unlocked, but because that char has the loot window not auto shown, whatever is on the list does not matter to me.