B.A.T Badascan fuzz

[traktop]

I'm bulding the B.A.T. "Badascan" fuzz, (a lstr with pharaoh's tonestack).

I´m thinking on adding a mid pot.
Would adding a 500k pot instead the 470k resistor to ground after the 10n cap at the tone stack acomplished that?
I found this as well:

It´s a Quantum Mystic/Badascan BAT custom build. About minute 3:25 introduces the Basacan tone bypass stomp switch. Reading the text description it says that it lifts the "High" leg, bypassing part of the tone stack.
I was wondering if it would be as simple as lifting the layout board "highs 3"  that connects to a 22n cap to ground.
Or maybe jumpering "Highs 1&2" straight to "Tone 1" bypassing the "Highs"pot and 22n cap completely...
I don´t know, any ideas?

Cheers, Gilberto.