I think you know your stuff Kitru, but I see many wars make the same argument about being able to do more damage is irrelevant when you're there to tank. When you say things like that, I think you should just roll a pld, if your concern is being the "main tank". You clearly view being an "off-tank" as being sub-par, all I can say is I don't think everyone sees them that way. Offtanks are a necessity, you can't send any dps out there to do it, some very skilled players could pull it off sure, but it would be an extreme strain on your healers, and why would you want to do something like that to your group when you have the option of sending a "dps" that is in actuality a "tank" to handle those adds, making things easier on everyone.