I have a Charvel 2b with a Gutarfetish p pickup and the stock jazz. I tired switching the white and black wires on one pickup as commonly suggested. Still has the issue. There is no problem unless the blend knob is perfectly on full. Blending a little or a lot of one pickup with the other doesn’t have an issue, only if they are both on full. The control layout to v/b/t. I’m at a loss of what it could be?