I own a "Electro-Harmonix Big Muff" and a "Eelctro-Harmonix Micro POG". Both pedals sound great, but they don't work in conjunction. I only get sound if the Micro POG is first and the Big Muff is turned off. Only then does my clean signal come thru also. I am guessing there is nothing wrong with my cables, cause the clean sound comes all the way thru. They both work fine alone. The point of the pedals was kinda to use them in conjunction. Is there something about the pedals I have overlooked, or is something wrong?