Priest T6 Bonuses

[Brista]

Right, I had neglected to take that into account. However, all that proves is that the Nefarian trash-fight is possible even with a base low threat-modifier. It doesn't put any weight on the -50% threat arguments. I still haven't seen any evidence that it exists.

http://elitistjerks.com/showthread.php?t=9258 is a good summary of how threat is believed to work

Regarding heal tanking with Improved Righteous Fury I believe that threat is 0.5 per point healed (base) * 0.5 (innate paladin healing threat modifier) * 1.9 (Improved Righteous Fury modifier) which puts it just a tad behind non-talented heal threat from the other classes