Hello! I have installed the Fender Original Jazz pupset and I'm experiencing some gain problems. The bridge pup is interferencing the neck one. I mean, when both are 100% the gain decreases as if there was some sort of compression. When I decrease the bridge pup until 80% the overall gain increases. The bridge volume knob after 80% acts like compressor decreasing the overall gain. What could that be? Have you ever experienced something like it? Thank you!