2300 unbuffed?? Gah, and you are tanking man?? I have 2545 unbuffed and I am few levels lower than you...got 1250 or so AC as well.
I find the level 27 charm to work great as a taunt....wont land, but resisted it still adds nice aggro, lol.
I have also found out that 3 dots and melee works well for gaining aggro, then after about 4 or 5 rounds of dots, drop them, and go blender mode with haste, buffs, and DS.
I duo all the time with my wifes druid, and I run a 70+ point DS depending on the song, which helps a lot in getting mobs dead.
I tank all the time with only bard slow, lol, and druid heals, hehe. However, what you lack in your toons is evac. Evac is your friend, lol. Something going bad? Mez and evac, all is well. Cant mez? Root and highsun, then evac fast before the train arrives.