First pull = Entrance to first boss. Flash each group of mobs as you sprint through them. When you get to the last pack flash then don't flash again until the rest of the mobs catch up, then spam flash until you are oom, then go to using FB, RB, Flash rinse and repeat until all mobs are down. You also want to use circle of Scorn on cool down. I run with coil geared people, time to time yes I lose agro on 1 mob but for the most part I don.t