Adrenaline Overload (required 20): (Active Cooldown: 5secs) Gain +1 Adrenaline use per rest. By consuming 1 Adrenaline use, your next attack will deal +400% damage and increase your critical threat range by 16. You are considered raged until your next attack.

How does this work with TWF?

Does the 300% or 400% boost happen on both main and off hand, if the off hand procs? Or only on the main hand.

On a side note, does Quick Draw reduce the activation lag for this?