rangerjohn
Explorer
Well, there is the argument, that he has a spell list, but he is not capable of casting the spell yet.   Like a first level wizard has fireball on his spell list, but he is not able to cast third level spells.  I think UMD is for classes that either do not have a spell list, like a rogue or a limited list like magus or bard.  But as in all things, it is your game and the final decision is yours HM.