Hello everyone.
I've traced the 'Mountain Range' side of the Fuck Mountain by SS/BS. According to marketing this is the SS/BS Mountain Range circuit. The Mini/Fuck side is already out there.
It's an interesting if not rather simple circuit. I'd have done things differently for sure. That output cap could cause switch popping. You could replace it with a 100n and the new cut off frequency would not be a perceptible change.
I have not dismantled the unit as it isn't mine. Due to this; all pot tapers are unknown (though you could take a guess), 'russian' diode is unknown, input pot value reads as 5K, though that feels very small.
The Fuck Mountain also has a small mod to the Mini/Fuck overdrive side of the pedal. To convert the SS/BS Mini/Fuck Overdrive into a 'Fuck Mountain' spec'd one all you need is 2x 3mm red LEDs, and a SPDT on/off/on switch. One side puts the anti parallel LEDs between lug 3 of both gain pots, the other side puts them between lug 3 of gain pot 2 and ground. In the middle the LEDs are out of circuit.
Small Sound Big Sound 'F*** Mountain' Schematic [traced]
Big thanks for this. I whipped together a breadboard version and it sounds/performs well thru my G&L ASAT III —> Fender Bronco (VibroChamp). Simple and good always works. though SSBS always has a twisty bit. I’ve also enjoyed their ideas. Love that Sparkle drive. Thanks again 
