Community in this game is unbelievable.

[Lithera]

Both tank classes can get along just fine early on without a soul stone. PLD doesn't get Sheild Oath until 40. The benefits of Defiance are minimal before you have Storms and Inner Beast and the extra DPS from MRD with DPS cross class skills shortens fights to make up for the extra healing needs.

[Naberrie]

Both tank classes can get along just fine early on without a soul stone. PLD doesn't get Sheild Oath until 40. The benefits of Defiance are minimal before you have Storms and Inner Beast and the extra DPS from MRD with DPS cross class skills shortens fights to make up for the extra healing needs.

This has been my experience, too. I've gotten in Cutter, Brayflox, Haukke, Qarn: all with class tanks instead of job. All were doable. The first dungeon where we simply could not complete it with a class tank was Stone Vigil. And in that case the tank had been soloing as GLA to use cross class skills when they queued and forgot to equip their Soul Crystal first. They felt awful about it, and we all said it was cool and gave it a go, but they were simply taking too much damage for the healer to keep up with.