Why Shirk?

[Galactimus]

I have trouble finding a space on my hotbar for Shirk. It'd be nice but I just can see giving up:

Convalescence (OP when used with Clemency and/or Requiescat self-sustain)
Awareness (You can't block a criitcal hit. On PLD this makes Bulwark and Passage of Arms much stronger.)
Reprisal, Rampart, and Provoke are forever slots.

I'd give up Awareness and take Shirk if you aren't a Paladin. Though I've never had a problem Tank swapping.

[Hruodig]

I have trouble finding a space on my hotbar for Shirk. It'd be nice but I just can see giving up:

Convalescence (OP when used with Clemency and/or Requiescat self-sustain)
Awareness (You can't block a criitcal hit. On PLD this makes Bulwark and Passage of Arms much stronger.)
Reprisal, Rampart, and Provoke are forever slots.

I'd give up Awareness and take Shirk if you aren't a Paladin. Though I've never had a problem Tank swapping.

In 8 mans you should be giving up awareness for shirk (except in o3s, where the tank buster is a guaranteed crit. I personally dropped convo for awareness). Shirk is a sizeable dps increase for both tanks and shouldn't be ignored, even for pld, especially for pld since you never ever wanna use rage of halone if you can help it.