End of the day, I understand that the way things are at the start of PTR is not as they will be at the end. That being said, were this to be the actual 4-set bonus, it would mean only using 4 pieces for AoE heavy fights (and I mean heavy) and taking only 2 tier pieces for other fights. Hope we can mount in the new raid instance because we're going to need the reforge mount a fair bit.