How about reducing swiftcasts cooldown by 50%

[Klamor]

Never, you never take off WM. As much as I hate WM you lose two of the most important skills the class has added.

Not entirely true. There are definitely times when it is perfectly acceptable to turn off WM for movement. Generally, from what I've read, and been told myself, the threshold is somewhere in the 4-second range. If you're moving for longer than that, you're probably moving too much, and if you move less than that, you're OK with just keeping WM up and not attacking.

If you're doing content where you don't have enough notice for a random AOE that causes you to miss Iron Jaws refreshing your dots, you're probably running content where it doesn't really matter if your dots fall off. Otherwise, if you're doing content that actually means something (read: savage, extremes) then you should know the fight well enough that you can anticipate when you'll have to move, and how far you'll have to run, and you can adjust your WM usage accordingly to be most efficient. Otherwise, if your dots are refreshed, and you're not about to fire off a Barrage + Empyrean Arrow, you're not losing anything other than the 30% damage buff for a few seconds by turning off WM and still being able to reapply Straight Shot, Flaming Arrow, or Blunt Arrow for a silence.

On Topic: They would have to balance it out not only in PvE, but also in PvP. Swiftcast already reduces the potency of spells cast with it by 50% in PvP, for the shear reason of Flare, (previously). As it is now, since BLMs don't use it for Flare anymore, it's Swift + Sleep (AOE). Reducing the cooldown on Swiftcast means more reliable occurrences of parties being hit with Sleep + Cometeor. That's not something I'm interested in seeing more of, unless they also further reduce the cooldown on Purify. See where this goes?