What's Masterclass? Never heard of 'em. Canadian product?
I go along with Rick on the idea of relatively light trebles and medium-to-heavy basses. Tend to default to D'Addario or John Pearse PB Bluegrass gauge myself.
I'm told Norman (genufluct), when he was playing the Martin 12-fret, used a combination he made up that ran from a .10 high E to a .60 low E.