For those off topic BLM mains:

Quote Originally Posted by Komori View Post
So does Haste on BLM from /RDM still fall short of Dark Arts reduction to recast etc?
Haste (15%) + Fast Cast (7.5%) > Dark Arts (10%). But if you aren't solo, you should probably have someone casting Haste on you.

Something nobody has mentioned is that /SCH gives access to weather spells and Klimaform as well. That means more accuracy for your spells and if you have the right gear (Obi + Twilight Cape) you get a 15% multiplicative (with your bonus from your staves) bonus to your nukes (all except thunder, dark and light based spells). That said, for Black Mage main, the choice isn't as cut and dry as White Mage main - sub job choices will be more situational by far.

As before, the best sub for White Mage is Scholar. Red Mage is competitive in certain situations but is mostly the weaker sub, but I would put it in the same tier of usefulness and not discriminate party choices based on it.