I haven't tested it myself but it certainly is hard to imagine running your MT, OT (who will be doing 300+ DPS, much much more if closer to i130), MNK, other melee, and BRD dry is worth the 20% BRD gain and 10% caster gain for one minute, even if your SCH is going hard. Maybe with 2 caster comps plus a NIN I could see it being a legit DPS gain.

The only time my group does Foe's > Foe's is for short enough fights or for when there are distinct breaks in the fight. Of T6-13, Foe's > Foe's for T6, T9, T12 and T13 (p1/p2 are actually long enough this might be bad but it gets shorter every week). T7 (assuming you're not flooring it with current gear and Echo, which you actually should be at this point), T8, T10 and T11, Army's gets played.