So what is PLD good at?

[Tiqa]

Healers can still DPS with a tank out of their tank stance. The higher the raid DPS the less mechanics you have to deal with, the less mechanics you have to deal with the less healing is needed. Less mechanics also allows tanks to alter their CD rotation to be more effective. It is a progressive cycle that helps the entire raid.

People give the tanking stances too much credit. Even in FCoB you are looking at taking ~2400 damage vs ~2000 damage from an auto attack, that is one tic of regen. With the echo tanks have tons of excess HP. T13 was cleared when tanks had less then 8500 HP.

Of course healers can dps which stance tanks are using, not going to discuss that.

But it's mathematical, if healer have less to heal, he can do more dps. What I'm wondering is which one the best? The bonus dps from tank in dps stance or the bonus dps from heal casting more attack spell?

Anybody made some test using a parser? I have the feeling that Boss Tanking should be done using dps stance, but I 'd love to put some objective evidence over what is just a feeling.