How many locations per sleek type do characters have now? One?

One down side to this is that it would involve some re-exploration. Say you do all your exploring. You find your barrier and shield locations, but not aura. So you take the "extra aura location" edge. Now you get to go check *all* those locations again to see if they now contain one of your aura wands.

Though, I guess you're still better off than you were sans edge.