This is my second build of this pedal. Wanted a larger enclosure so my size 12s could work one or the other stomp switch. Anywho, the gain pot is not working. Dialing it up and down does nothing but increase volume. When the boost is engaged, I get OD, but not without the boost engaged. Checked voltages against my working pedal. Checked the pots and resistance is what it should be. I'm stumped. Attached are a couple of gut shots. Any advice is appreciated. Thanks!