As of lately I have been having problems generating threat. On most mobs I will generate anywhere between 450 and 650 tps according to threat meters. I run Kara with a druid OT and he is averages between 650 and close to 1000 tps.
The problem is once he gets aggro he can literally stop attacking and I can not get a mob off him because the majority of things are immune to taunt.
I have tried just stacking sunders as well as 2 sunders, revenge, HS, shield slam etc. but I am unable to obtain vast amounts of threat. People on the WoW forums say I should be around 800 tps but I wanted to come here and see what you folks have to say. Any help would be appreciated.