Originally Posted by
voltaa
This isn't the case, I had to explain this to a DK friend of mine who would spam away mana at max stacks to not mana cap on his way back up to 4 charges. We don't lose dps by mana capping, we gain dps from it. Where hunters for example use their filler to build focus and their hard hitters cost focus, it makes sense for them to not focus cap, also due to the fact that whether they have 30 focus or 120 focus, arcane shot hits for the same damage. Our mana is almost the opposite of focus where we want to stay as close to capped as we can, missiles cast at mana cap do 100% of your mastery, so if you had say 100% or so mastery, they are doing double the damage. Also our bombs snapshot our mastery, so being able to dot things up at 100% mana means those bombs will do 100% of our mastery for their duration, regardless of our mana % during.
tl:dr mana capping isn't a thing