I would much rather blizzard make it so haste isn't as good for shadow, or make crit and mastery much better for shadow. I don't know about you guys but having 50% haste just isn't fun. Not to mention having 50% haste, with lust, berserk, and PI. I would like to see other mastery ideas. Make crit work with the spec more. I enjoyed when our mindflay crits reduced shadowfiends cooldown.