In SCH threads I see Dissipation getting a lot of flack for being an abysmal skill, which I can understand for the reasoning that it takes out our mighty healing turret out of commision for a good 30 seconds and only provides a barely useful 20% healing pot. buff.

My qualms with this attitude is that I never see any constructive feedback for the skill as it already exists. Because I don't like seeing skills just collect dust on my hotbar I tend to pop it when I've successfully exhausted all of my AF stacks and manage to still have another 30 seconds until I get another, rather than hope beyond hope that physick and Embrace can keep your tank from being razed to the ground by sustained fire from a mob or boss.

So my question is for those who use Dissipation. How and when do you use it? Is there an optimal time, do you plan like 10 seconds ahead? And how do you make the best of your time in it?