So I've been stacking Mastery>Haste and finally checked out Simulationcraft and get the following weights
( Pawn: v1: "Arms": Class=Warrior, Spec=Arms, Strength=8.14, CritRating=10.60, HasteRating=8.61, MasteryRating=9.54, Versatility=7.86 )
I thought crit was the worst stat? Is too little even worse?