I currently have the PD7 but there might be a flaw in the circuitry. The pedal doesn't produce any distortion, just a volume boost with a little grit. I'm going to eventually buy another pedal, like a fuzz.
Does it do that on all three modes? The first mode is supposed to be like that; the second two are overdrive and fuzz distortion.
I'm really glad i got one of these.... don't remember where or how I got it either, but it's awesome and i haven't had any switch problems (woodknocking ensues).