I'm currently rocking 13 expertise in my default tanking set. Most of the gemming is 8 def/12 stam, with a few 24 stamina gems throw in for some socket bonuses/meta.
Sitting at 543 defense rating (shield isn't enchanted yet), and I'm debating replacing 4 of the 8 def/12 stamina gems in for expertise/stamina, mainly because of the red sockets. Would losing the extra avoidance/mitigation of 32 defense rating be a worthy trade off for 32 expertise? Thoughts?