A friend of mine is having trouble with an electric mistress. The pedal won't pass audio in bypass mode. So in other words, no sound unless he grounds the chassis to the middle leg of the color pot. Then he can get flanger noises. Here is a link for the schematic. I figured someone may be slick with this stuff over here, so if anyone has any info I'd appreciate it. thanks
http://generalguitargadgets.com/diagrams/dmistsc.gif
http://generalguitargadgets.com/diagrams/dmistsc.gif