I've tanked it multiple times now as multiple specs.
5/5/61 and
44/23/4 are by far the best specs to use.
I would go as far to say that 5/5/61 is better then 44/23/4 in almost all situations, more cooldowns means you don't have to rely on paladins or priests at all, your nearly self sufficient and any 1 healer can keep you up.
with 44/23/4 I used:
Breath1: AMS
Breath2: IBF
Breath3:
Fire Pot +
Repelling Charge + Vamp Blood + Power Word: Shield
Breath4: Guardian Spirit + Power Word: Shield
Breath5: AMS (If needed)
We only over get 2 or 3 breaths uasually, but with that spec you need to rely on healers for CDs.
with 5/5/61:
Breath1: AMS
Breath2: IBF
Breath3: AMZ
Breath4:
Fire Pot +
Repelling Charge + Bone Shield
Breath5: AMS
Breath6: IBF
I've done it as 5/5/61 with a single druid in mediocre gear healing me and my tanking gear isn't
that great. If you do it wit a priest healing you it absolutely negates the entire encounter.
Also if you dont have a repelling charge or some other trinket that has a use thats decent for this it dosen't really matter, because Boneshield/Firepot is more then enough as it is, same with Vamp blood/Firepot/PWS, I just use it as insurance and because i dont have anywhere else to use it with.
the biggest thing is that your healer has to keep you TOPPED off all the time. with 5/5/61 its not so bad because you almost completely negate the breaths, and ive gone into breaths with 50% hp and as fine, but with 44/32/4 you need to be 100% for every breath becaue your relying on your HP pool + will of the necropolis.
another note, with 44/32/4 you're relying on your healer to keep you topped 100% of the time so putting more stress on him/her by relying on him/her for multiple cooldowns seems a little counter-intuitive to me.
tl:dr version. 5/5/61 is optimal from my experience and is much more forgiving on low dps groups and dosent require a specific healer, whereas 44/23/4 requires a priest or paladin with good gear and a high dps group, and dosen't put out as much threat.
