From one tank to other tanks..STR Gear is not a thing anymore..Get used to it now!

[BlackironTarkus]

So, if we assume the higher end, Tenacity provide the following boost of 5% per 1k: 5% reduction in ALL damage (magic or otherwise), 5% increase in ALL damage done, and a 5% increase in ALL healing received.

Add in melds to both left and right side for tenacity and you're easily exceeding 2k Tenacity total. On top of this, you keep your 25% larger HP pool

I don't think I'd call a 10% adjustment to ALL 3 areas to be a miniscule bonus. Hell, I'd argue that taking these increases far outweighs the, at most, 15% increase in DPS a tank does with STR accessories.

The increase to healing is only applied to self-healing done, and with 1072 Tenacity my Dark Arts abyssal drain still only drains 88% of it's damage dealt, so it's not augmenting life-steal type healing either.

@ 1076 tenacity (Full vit rightside)
DA-AD 1256 dealt, 1111 healed = 88.45% lifesteal
DA-Souleater 3818 dealt, 3378 healed = 88.47% lifesteal

@ 807 tenacity (2x Vit 3x STR)
DA-AD 1128 dealt, 998 healed = 88.47% lifesteal
DA-Souleater 4098 dealt, 3626 healed = 88.48% lifesteal

@ 364 base tenacity (none from gear):
DA-AD 468 dealt, 414 healed = 88.46% lifesteal
DA-Souleater 1556 dealth, 1376 healed = 88.43% lifesteal

So in 708 points of tenacity my lifesteal increased by 000%. The 0.01 - 0.05% differences I'm going to chalk up to the game's calculations, you can't tell me 0.05% differences are significant, and they even go up by 0.02 and 0.03 with 269 less tenacity. Yeah no. If it was working as advertised my lifesteal %'s should have gone up to 92.87%

Currently Tenacity has zero effect on incoming healing from anyone else, and zero effect on self healing generated by lifesteal. The only thing I've seen it increase in testing has been Paladin's self-healing with clemency.

Even at 2k Tenacity if it's boosting your overall damage by 10% and reducing damage taken by 10% you're forgetting that the loss of other useful secondaries begins to subtract from your 10% damage increase.