Okay, hmm. It seems like if you already have a lot of high-priority work then logically, most new bugs will go
after them in the queue.
And if you're running out of time, that would amount to the same thing, since you'll never get to it.
Also, so long as you have enough work queued up for a few weeks, there is not really much point to stack-ranking the remaining queue items anyway. Everything else is "lower priority".