Pro tip: Tell me you're new to a dungeon /rant

[Aeyis]

Trash pulls are largely the same from dungeon to dungeon; if a player has speedrun Sastasha Hard, then they know pretty much all the mechanics they need to know to speedrun AK Hard. Once you know HOW to speedrun, you pretty much know how to do it anywhere. Really the only exception to this rule is the tank, who has to work out just how much they can pull in each new dungeon.

That is incorrect. For a healer it is imperative to know what packs will be pulled, how many, and how exactly when and where the tank pulls. And depending on the pull you will likely need more then one time doing it to get used to it (each seperate speed run).

On top of that in my experience 95% of all tanks overextend their own abilities or the healers capacity for healing when they speedrun/pull. Very nearly none of them take note of the healers abilities being on cooldown either.

You might be the only healer in all of Eorzea that actually buffs the tank in a reasonable amount of time without being prodded to do it. As a tank it drives me absolutely batty to stand there staring at the healer while they chat or just plain do nothing for 30 seconds, only to have them cast adlo/stone skin/regen/eye for an eye on me right when I aggro mobs so that 2 out of 3 make a beeline for them. They just don't understand how much extra damage I end up taking when I have to double back for strays instead of staying ahead of the pack.

Im sure you have a healer. Play it sometimes to see what the cast time on stoneskin or aoe stoneskin is. Or the fact that you cant use the later in combat. Or you know, that when you move when they are casting you should probably stop moving instead of letting it hit after you aggro mobs.