I have a Fender Jazz. I noticed the tone control, when you turn the control, either is bright or not bright. I have tried different capacitors and there doesn't seem to be an "in-between". I have also noticed that the control is 98% bright and 2% non-bright. I primarily use non-bright. Any advice? I am looking for a more adjustable tone control. Do you think it's a bad pot? It is a new bass. I have standard pups and run it through a sadowsky pre (floor model).