Update: It finally happened.

Cleared T5 last night with "randoms." Two were from my former FC. We wiped about 4 times, but eventually got her down. Though I ended up dying on the last try as I was trying to keep Twin in the Neurospot while avoiding getting the OT hit with Hells. Seemed like she kept favoring me as a target for them. But it eventually came down to a WHM, SCH, BRD and a BLM kiting her around at 3% and finishing her off with DoTs/possibly Flares. Didn't bother to look, I was too busy going Super Bowl fanatic by that point.

But since I've been maining Warrior, I tend to use the Twin combo in just about everything I do now.