If you are going to pull multiple packs, KEEP MOVING. You do not need to secure a huge threat lead. Hit what you can as you pass, ranged attack while running, and once you stop, STOP. No one is going to die from point A to point B if you happened to miss one mob, but you stopping tells everyone to start bursting and throwing out cooldowns. People will bring the mobs to you and in the range of your AOE, and you still have provoke if needed. Taking 3 GCDs and then pulling everything out of Doton, Slipstream, Asylum/Sacred Soil/Earthly Star, and out of range of that Black Mage winding up is sure to give everyone an aneurism.