Originally Posted by
Ferocity
What concerns taunt swaps. If they need to happen early in fight (trash, first switch on boss) - tank without vengeance has trouble to keep boss on him after taunt, so in many cases other tank have to slow down himself to not trespass 110% melee threat threshold with his millions of vengeance, while other tank hits boss with wet noodle. It is a little concern later in long fight, as 110% threshold requires more damage to do to reach it.
Edit: and Halfus is not good example, when one tank on Halfus, other tank - on drakes, and if drakes are dead, it is already quite long in the fight for 110% threat threshold to be problem.