I ran an LFR today using both sets of stat weights / reforging on my gear. Going heavy on crit and moving away from mastery while leaving haste alone (for the most part) was the most effective DPS gain for myself in current gear.
Damn this whole not being able to post links yet thing... I'm Targoris - US Turalyon on the armory if you want to do a gear comparison / look at reforging and gemming.