JBB Usefulness

[yaaaflow]

Mardur has a good post somewhere on these forums where he did the math on it - at level 60 it's pretty clearly better to not be using JBB and use the time/mana for other stuff, but when you can first start using it at 45 it pretty much beats almost anything else you can do DPS/efficiency wise. As you get further into the 50s it begins to lose effectiveness outside of some specific circumstances.