I went into ZA last night for the first time and it seems like we had a really rough time of it. I have my avoidance trinkets on atm moment. Buffed I was at over 17khp.
The Pally healer was having a hard time keeping me up on the last trash pull before the bear boss, though I think he was throwing his small quicker heals early on and just wasn't keeping up with the damage I was taking. We eventually got past that pull and wiped on the boss a couple times. I seemed to be doing ok on Troll, Druid tank on bear phase. Last attempt we had him at 36% before druid went down. His trash reset and we called it.
I know the waist piece needs to go, 4 badges from Girdle of the Fearless, and I'll probably regem a little after I get it. Working on T4 gloves/shoulders and helm and Gruuls shield, just waiting for them to drop...
Well tbh I wouldnt let you MT past the fist 2 bosses ( pvp gear and blues needs to go )
Secondly , you have 28 def rat to loose , what I personally would do is gem all red slots with dodge and all other with max stam gems , forget socket bonusses for now as I have a feeling that Effective health is your main problem atm .
The def rat enchants on chest and cloak needs to be replaced by dodge on cloak and health or 6 stats on chest imo .
Personally I feel that you have way to many kara runs needed before you and your healers are gonna be confident stepping into ZA as I tanked ZA with full kara gear and still had first and second boss wipe nights .
Get all the badge gear you can asap and run heroic Mgt as much as possible untill that trinket drops off the 3rd boss ( Darkmoon Card : Vengeance is a substitute but not ideal ) .
Order of badge upgrades imo are : 1) New belt , 2) New leggings , 3) new ring , 4) Old badge vendor Bracers , 5) old badge vendor GAB trinket .
The +def is largely a result of not re-tweaking after some gear changes. I usually use Commander Badge from Netherwing which is +45 stamina, but swapped it out in place of Dabiri's Enigma. That drops my back to 506 def, but still allows me to regem for -16 def. Point taken on the crit gems, they were just gems I had in the bank from H Mech... I'll regem them.
I know the S1 shoulders need to go, I need to see the token drop...acknowledged that in OP.
I was using stoneshield pots. Yes on Command Shout and TC. Don't know about the Hunter. We had 2 locks, they were fearing. Yes, split the bears up...