Yoshi-P on Tenacity

[Cadmus]

So if we, for arguments sake, say that a tank puts DH in every slot, or tenacity in every slot, they would give up ~0.8% damage for 3.8% damage reduction?"

520 is the most you can meld on left-side. Nobody is going to meld anything but STR on right-side.

520 tenacity = about 2.5% dmg reduction. 520 Dhit would give you about 1% more DPS over 520 Tenacity.

Tanks choosing 1% more dps over 2.5% more def is a no-brainer. How often did you ever get down to 2.5% health in a raid and live? If you ever gotten that low it's cuz your healers are both dead and you're about to wipe.
And healers overheal. Whether you're at 80% health (no tenacity) or 82.5% health (tenacity), you're goin to be healed to 100% anyway in the next Cure II.

So 2.5% dmg reduction isn't necessary or being utilized all the time if ever at all.

Meanwhile 1% more dmg is always being used.

A 2.5% stat with less than 1% use, or a 1% stat with 100% up-time are the choices.

The only way Tenacity will ever be a go-to stat is if it's an exponential increase variable. The more you have, the more potent it becomes. And if future tank gear is filled with it so you can hit 2,500+ tenacity with melds.