We use the 2 BRD's and OT to tank some plummets at the start of the fight (100%-85%) to build some LB. Meaning we always have full LB3 without sacrificing DPS. When divebombs hit, we kill 1 add, while having our SMN dot up the 2nd add. We then direct ALL dps onto the big add with 1 stack. We then do the 2nd set of divebombs then the OT grabs the other 2 adds, they bring it all to the middle, I LB3 all 3 (the dps quickly dot up the new adds) and by the time the LB3 hits all 3 are dead with 3 stacks on the big add. Then it's just a matter of dps popping CD's/pots etc. If your dps is not below the required amount then you should do this fine with 5-10 seconds to spare.