I think I would be happier if the loot tables reflected the party makeup. If there isn't a SMN in the party, her book won't drop, no brd no bow, etc. I don't think you will ever get a setup where you have restrictions on "you must be this high" to need/greed an item, which is probably for the best since everyone can be every job even if they choose not to. I take issue to the people who beg for a party to let them have a drop for an alt when there are several people with current mains who could use the item (for ex a sch asking for a helm for his blm when there are 3 blms in the party who want the item). Loot tables based on active party members I think is a more reasonable goal.