I received the pedal new from Guitar Center online yesterday and when turning the drive knob clockwise past noon it has a scratchy sound, but only when turning, otherwise it works fine. I was reading on the Talkbass forum that this is often normal with drive/ sustain knobs.
I also have a bass big muff pi that I’ve owned for many years and the sustain does the same but functions perfectly. The BBM was purchased used but in mint shape but I never really paid attention to the scratchy sustain.
Any insight is appreciated. Thanks.