I don't know if the cooldown changed or not(it very well could have) but last I heard it was still a 1day(?) cooldown...could be wrong though, the only change I'm sure of is that they made it so you only had to get the Eternal Quintessence instead of the 1-use only quintessence, basically so you didn't have to go back to azshara before every single freakin raid like we did at first lol

And no worries on the flames, it was asked in a way that can encourage discussion and Zin's old posts ain't worth quite as much nowadays(Though not worthless! :P) with all the BC changes + advances we've made in both boxing tech and class/talent selection lol