Questions about PLD vs. WAR tanking

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OP likely meant "Transpose" as he said:

"I mean, now all I have left to unlock is BLM, and I know how to do that rotations between Astral Fire and Umbral Ice with converting to regain lost MP."

You just made my point. OP is not knowledgeable enough about the classes or the game to be dictating to others how they should play. That is ok. None of us were when we started out. Just meant we had to take a passive position until we learned what things are called and how the people have come to play the game. Then we were able to become teachers.

and @ Whisky

As someone who has leveled every dps job in the game and both tanks, and working on healers I would respectfully disagree. Sleep is never beneficial if you want a smooth, fast run. AOE is perfectly viable at all levels it is available. And I have seen thousands of pulls go bad and/or take 10 times as long to kill in lowbie dungeons because the blm wouldn't aoe. The biggest problem is that dps and healers (during down time) are not aggressive enough in doing damage. When they are aggressive the runs go smooth as butter. Heck I saw a post on Reddit yesterday where consensus was agreed, you can not nuke and be a good healer or you can nuke and be a great one. Your example is just an example of players that are just too timid or undergeared for the content they are doing.