Ok. I've built the Octavia from the GGG layout.. I LOVE the fuzz...sounds really tough with drop tuned stuff... but I wanted to know if there was a way to expand the amount of the fretboard that has a strong octave. I like what I' getting just want more :)
Well when I use mine (or my green ringer), I use the neck pickup, turn the tone all the way down, and its really cool.
I would guess based on that experience, you would need to cut lots of highs before you hit it. Maybe a really agressive low pass filter at the beginning on a switch?