I recently spent money I shouldn't have spent on a GGG tuned muff kit. It arrived this morning and I've spent the last 5 hours working on it. I put it all together according to their instructions and now, it does not work. I've checked my solder joints. I don't see any bad cold solder joints, I don't see solder touching two points together anywhere. Of course, I'm practically blind and I may be wrong. Point is, this is the 3rd pedal I've worked on. I failed attempting to rehouse another muff clone. It broke in the process somehow. I tried to build a Parapedal clone. Never happened. I tried this GGG muff, and even with the great instructions I was give, I failed. Some people just aren't meant to do things, and I guess I'm not meant to build effects. I'm going to give this pedal to my friend, if he's willing, and see what he can do with it. Maybe he can see what's wrong and fix my mistake. Otherwise I've wasted 70 dollars. Only thing I've succeeded in is burning myself.