I have been doing the Mount Olympus dungeon over and over on my level 83 Balance wizard in order to get Senator/Zeus Gear for my level 30 Storm wizard. Does Zeus only drop Zeus gear for your school? For example, I want Zeus' Helm of Tumult for my Storm wizard, would that be possible to obtain on my Balance wizard?
Senator gear can drop for every school, but you don't need to farm Storm gear, your storm will probably get enough. I think there may be a predisposition towards your school though. Zeus gear only drops for your school. You're going to have to use your storm.