I dont like to play tank, its not meQuote from Codyksp
If you play with the gear currently on your profile than that damage reduction must be working some very big miracles since you aren't very tanky at all with those items. I'll have to try it and see how it works out.
This is my gear.
I play T3-4 for normal farming.
I tried once ubers at T5 and made it without dying.
I play T6 for XP runs COTA even solo i can make it easy, i just skip the elite.
Also play T6 cathedral2-4 when my party is high dps or have a taunt-tank barb in the party.