Black Mage Dps Rotation Guide! in 90 Seconds!

[PessimiStick]

Agreed.
Sync your casting rotation with the GCD along with mp tick to yeild the greatest Damage Optimization.
It's very hard to explain. But that's the key point.

It's also impossible, since the GCD is 2.3-2.5 seconds, and the ticks are 3. You can't "sync" them.