@Kiteless - I've never had an issue with DAing any CD, along with mixing in DA/Souleaters, AND running out of MP. You have a constant stream of incoming MP along with out going MP there is no reason to bottom yourself out versus maintaining a solid level and sticking with it. Especially in emergency situations, I had a tank get knocked off into the transition to the third phase of Bis Ex and if I didn't maintain my MP I wouldn't have been able to snap off a few Abyssal Drains to pull the two melee adds over to the caster add.