Just playing around with this idea, to put straight mortals on a "more even" footing - it is also an idea inspired in part by the stunt trees in SotC.
Breaks for stunts - so, something like the discount for an Item of Power, or the Catch on Toughness powers, which would give at most a -1 discount to a themed package of stunts.
So, just to pick on Murphy - she's got a bunch of stunts relating to her skills as an Chicago SI officer.
That would be grouped under SI Officer for a +1 to the cost (i.e. reducing by 1), and would need to be referred to in the High Concept or Trouble or one of the Aspects.
Supernatural powers get that break - might be good for mortals and their stunts too.
Feedback and commentary welcome - and thanks in advance.