I'm not that familiar with Gilbert's tones, but I am totally sure there's no BKP pickup that sounds as horrible as the Tone Zone!! :x
Just wondering, have you actually tried a Tone Zone? You mentioned on another thread that you like the sound of your PAF Pros, but the TZ is a completely different beast - much hotter and with LOADS more bass and midrange. Far too much bass and midrange. It's a boomy, muddy mess.
If you can't find a BKP that suits, you'd be much better off keeping your PAF Pro than getting a TZ (IMO, of course).