I just got one of these and I love it, to quote Joker, it has "tubey goodness!". Just wondering if any one else has the newer version with the bright knob...mine is the older version without. Does the bright knob do that much for the bass or is it mainly geared for the guitar? I am also still trying to figure out how to best use this pedal, so add any insight you have had when using it. Thanks, Marc