Coppersound Foxcatcher Overdrive & Boosthe Swiss Army Commander. Foxcatcher is the result of a six month trial and study. After a variety of breadboard builds and circuit explorations, we finally decided to clear the breadboard and start with a circuit that we loved, the Bluesbreaker. From there, we began changing and adding to the base circuit. The first of which was a slight change to the tone section and the addition of the Nature knob. From there, we added an output buffer and true