Quote Originally Posted by DarkmoonVael View Post
Because most WHM/Diurnal.AST will be solo healing for the first min+ of the fight, leaving you to use all resources for dps.
You shouldn't burn your three stacks from your first aetherflow straight away. Regardless of whether you will be using them for lustrate etc, you should wait until you use an instant cast ability such as bio or aero to avoid clipping your gcd.

Even with a pot up, I think this holds true - but if you have math that shows otherwise, I would genuinely like to see it as I'm not 100% confident.