How does rogue evade work?
 

What does it do to you on the aggro list if say you pull aggro and pull off a succesful evade? Just drop you to below the tank, all agro, a set amount of aggro, or something completely different?

It's a set number of agro or one slot down on list, whichever is greater/lesser something something. Just assume you're bumped down 1 every good evade.

1: Tank
2: You
3: Monk
4: Cleric

You momentarily duck away from the main combat.

1: Tank
2: Monk
3: You
4: Cleric

You momentarily duck away from the main combat.

1: Tank
2: Monk
3: Cleric
4: You

Does it work the same way if you already pulled aggro?

Yes.

Not sure what you mean by this.

If you aren't on aggro list you won't evade; you'll just hide. This is a good way btw of checking if you are on something's hate list.

If by "pull aggro" you mean being at the top of the aggro list then then it works exactly the same as Cecily's description, regardless of where you are on the hate less. If you are being hit by a mob and you evade then you will drop to the next position on the hate list, and the mob will bounce to the new top person instantly.

My question on how it works on p99 is what happens when you are already at the bottom? Does it lower your aggro or do nothing? Its such a rare situation that it has never mattered, but I've thought about it. When you feel safe on aggro is it better to jam the evade key whenever it pops or to hold it for a strategic time.