Okay, last post:

In addition, it allows something neat. When B4B comes off CD somewhere before the 4th combo, we can actually activate it in such a manner as to fit in three gierskoguls. We can consume the fourth GK whenever, we don't need BotD anymore until we reactivate it in the 1st combo when it all starts over.

I admit, I haven't done much math/theorycrafting around before, and I know my numbers aren't quite as perfect (I am assuming a 2.4s GCD, but I haven't made a perfectly timelined thing for you guys...yet). But am I missing something, or is this possible/an alternative?