
I've already changed them once, with the standard 4-knob Great Wall. I replaced the Tone control and Bypass-Toggle with a Voltage control and a Voice Toggle.
I felt the Voltage knob and Voice toggle would make for more usable range.
But the Dlx. Great Wall (which has a Tone control) still sells the best.
Maybe cause it adds another fuzz mode and also has the Voltage control...
But now I'm thinking people might prefer the Tone control.
SO!
What controls should the standard Great Wall have?