Quote Originally Posted by Idolon View Post
It's not so much the length of casts that makes spell speed good for BLM, but the fact that every damage skill BLM has is on the GCD. Most other jobs do a significant portion of their damage through off-GCD abilities with fixed-duration cooldowns, and skill/spell speed does not affect those at all.
Well, that also helps too. Doesn't hurt that some of our hardcasts are longer than the GCD (especially our bread and butter, Fire IV).