LB confusion

[Kirika-]

One other thing to add, in certain circumstances, one will want to open with a LB as a Ranged or Magic Ranged only.
On some dungeon/raid encounters, a charge of LB exists before engaging a boss, but once the boss has been aggro'd the LB meter resets to zero.
One such example is in the MSQ - The Praetorium, at the start of the Nero encounter.
At that point, unless it was used up earlier, the group should have the LB fully charged.
Ranged should open the encounter with a LB, as the LB meter will reset if a melee/tank engages Nero, or someone gets to close and aggro's him.
Ranged/Magic Ranged DPS can activate the LB while still at distance and out of aggro range and but still hit Nero with it, so the damage is used instead of lost.