Hello. Occasionally I see someone mention "managing" Rapture's cooldown to maximize mana return from this talent. I'm hoping someone will explain exactly what is meant by managing this talent's CD. On my priest, I'm usually assigned to tank healing, and I tend to use PW:S pretty much every time it's available on the tank. There's not much "managing" going on, as I use it whenever possible.
When I'm raid healing, I also tend to use PW:S on anyone who gets low, as well as on the tanks as often as it's available, certainly more frequently than every 12 seconds.
So what am I missing? I don't really have mana issues in raids, and am usually lowest on over-healing. I do use power auras to track rapture procs, but perhaps I'm missing the point of tracking it because it doesn't really affect how I play.
Please enlighten me!