Originally Posted by
Gothmog
OK, let me go into monks a bit. I think they're relevant because they're newest dps spec in the game and thus reflect all of blizzards gathered knowledge and experience with other 10 classes gathered over the years. WW design is continuing and building on the resource-based dps system and so (I believe) indicates the new blizzard paradigm of dps.
They have total capacity of 20 stacks of Tigereye brew - the "size of their pool". When they use them, they can only use up to 10 of them at once. They refill the pool by executing their normal rotation = spending Chi. At no point will they want to be at 20 stacks AND use a Chi finisher. Assuming good playing and forewarning, they can be at 20 stacks, with full Chi and near-full energy.
At that point, they can use it first. 10 stacks consumed for 60% increased damage&healing for 15 seconds. After that, they have another 10 stacks for another maximum power 15 seconds. After that, they'd have a less powerful (depends on mastery) buff for another 15 seconds.
It doesn't really matter if we consider just the first 15 seconds, or full 30 seconds. The first is an "average" burst timeframe, as I imagine it. The second is more than it's usually considered to still be "burst". I don't think any class can maintain a 30 second burst without major cooldowns. Even then, most have a lesser duration.
By those mechanics, they lose no dps outside of their procs, like destros. I'll admit, they're also likely basing their Tigereye brews around procs, so that's something to consider. But with a fixed 15 second duration, it's a lot less potent than destros.