I'm researching a mod to my Catalinbread BE pedal. If you are familiar with this effect, you'll know it has an internal trimpot to set the gain of the EP3 style preamp. I often play different amps and as it is, one has to remove the back to change the preamp gain. There are a few references to modding the pedal for external pot, but I can't find schematic data on what the pot should be. I guess I could remove the trimpot and measure it, but I wondered if anyone knew. FWIW, I am hoping to find a suitable pot to mount next to the input jack which has that slotted end, so it is nice and low profile, doesn't require a knob, just a pick to make the initial adjustment when setting up on a new amp/room.