So RDM and SpellSpeed...

[Mhaeric]

What? You can't compare corps and displacement to aetherial, they aren't even remotely the same thing. AD is instant teleportation to any one party member you want and it's on a super short cooldown. Corps and displacement (especially displacement), if anything, are more of a hindrance than a boon for movement because you have to use them on cooldown for damage and that means you have to learn the fight around using them. It's not free movement, it's "use this right now or else you're losing damage." It's not, "This helps you," it is "You MUST do this and you MUST learn the fight based around using this." They are two very very different things.

I wasn't. I was replying to the suggestion that RDM get some sort of movement ability. I was pointing out that they have one. I also pointed out the dps to mobility cost in my post that you quoted... so?

But while we're comparing them, Aetherial Displacement isn't free movement either. You either have to use it in one of your instant GCD windows which is either highly subjective to where you are in the rotation or if you have a proc available to use and you might as well just run normally, or you have to use it after a hard-casted spell which comes with a dps loss both from the delay that weaving between hardcasts naturally has and also the animation lock that Aetherial Displacement has since it's not actually an "instant" ability taking that into account. BLM on demand movement tools are definitely better than RDM tools, and no one here has said otherwise, but to say that RDM has none or that they don't have good mobility is a falsehood.