Hey, I finally received my walnut...and it definitely sounds great with my 1993 HD 580s But I wasn't sure if I had an issue with the volume pot. I am using it in amp mode....the first few mm of the knob, the music sounds scratchy and gets muted. It actually then gets slightly quieter before the amp suddenly seems to fully turn on, with a loud wonderful sound. But the rest of the half of the knob seems to do nothing after getting excessively loud at the point the sound fully turns on. Does this sound normal? It seems to only be usable at a volume louder than I would like most times, in amp mode. Hopefully someone can help me..