Choosing between a balanced set of gems?

[DeviousOne]

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?

[Ceravantes]

Expertise is still technically an avoidance stat. The thing is, you don't really "need" anything as far as survivability and threat, aside from stamina for a few select fights.

Personally, I gem for stamina in all sockets still.

[Omok]

I would use expertise/stamina in any red socket. As long as you are at a point where tanking is not like playing Russian roulette.