I traded a dunlop crybaby wah (gtar version) for a green sovtek big muff pi. I have seen on the search, members discussing the russian and sovtek, mine says made in russia on it so I am assuming that when you discuss a russian muff you mean the sovtek. Anyway, I noticed that you cannot actually dial out the distortion. Is this common on the sovteks as I have played a few usa muffs and you could almost dial out to a clean signal. With this one the distortion is very distinguishable with the distortion knob fully counter clockwise. Also, for those of you with this version, what are your favorite settings?