So, I just coined heroic warforged BBoY yesterday and I already had heroic toxic totem. I'm not quite sure which one to use for destruction. Simcraft shows slightly better results with BBoY (about 2k), but I don't know, how Simcraft treats BBoY. Does it assume that I can always optimally use the procc, which would be lining up chaos bolts with my remaining embers in a way that leads to the last chaos bolt being cast with 10 stacks of the procc? Or does it use the procc in a rather stupid way and just fire off chaos bolts when the procc occurs?
What can be done in actual bossfights lies somewhere inbetween. While you can always make intelligent use of the procc and line up your chaos bolts somewhat good towards the higher stacks of the procc, you obviously can't guarantee to always get that 9-10 stack chaos bolt.
During progression I had to stick with a lfr BBoY for a very long time, until I got my heroic totem. While I kind of mastered the use of the BBoY-procc for destruction, my dps went up tremendously when I looted the trinket. Aside from the very big jump from flex bboy to hc ktt in terms of stats and procc power, I thought the main reason would be that the heroic trinket seems to procc a lot more often than the flex version.
So.. how does simcraft handle BBoY? If it goes utopia-mode, I wouldn't consider those 2k theoretical dps to be worth it.