Seeing Red - A Complete Red Mage Guide

[CU_Giraffe]

It's completely ignoring the first cooldown,

It goes straight from the first cast into the next one regardless of whatever the CD should have been.... so you never actually see what SHOULD have been the first 2.36 cooldown. It's just the 1.8 cast time. It literally ignores the first cooldown.

You're still not correct.

Everytime you hit an action, you trigger the Cast and it's cooldown at the same time. For the first 1.8 seconds, Jolt is casting. The remaining .5 seconds (2.36 - 1.8 = 0.5), you can't trigger another move that is on the GCD because your original move (Jolt) is still on CD. It may seem like it's an instantaneous cast thanks to how moves are put into queue in this game, but it's not. No cooldown is ever ignored when it's a move that's on the GCD, unless there is a Trait/Buff that specifically says it does. In fact, the only time any CD is ignored is if the move is insta-procced i.e. Bloodletter, Low Blow, etc.

Dual Cast does NOT proc a decrease in the GCD. It just doesn't. The only thing that is being ignored is the cast time for your next move (Veraero/thunder/whatever). However, the CD (in this case, a GCD of 2.36) remains as it always does.

So, to reiterate the first point against your claim: Each Dual-Casted combo (jolt > ver-whatever) is TWO moves/potencies across TWO GCDs.