Silly tank melds

[EusisLandale]

Remember, a fast clear means less healing and less damage taken.

Even on the low returns estimate of 1% per 200, you're only looking at a gap of .8%. Roughly 24 DPS at the highest levels of skill and group coordination.
In almost every single aspect of the game you will never notice a DPS gap between a Tenacity tank and a Direct Hit tank.