So fun story; I frequently do my CT as MRD with STR accessories. With six tanks, someone is going to step up to maintank - and meanwhile I know for a fact I output more DPS than most DPS players do and still have all the survival I need to facetank Thanatos, Atomos adds, Vassago, etc. ; This might seem silly, but realistically, six tanks in Labyrinth is completely redundant. And in a pinch, I still have all the power to maintain aggro and health to main tank as necessary.

I know this last fact because I've still had to maintank the place twice because somehow even when there's five i110+ tanks actually geared to tank none of them will actually step up and take responsibility.