Hi, I have a Jerry Donahue model Vintage guitar and I have a question. In the second position from the bridge I'm not getting the "out of phase" strat sound that I'm supposed to. It sounds very much like the bridge pickup by itself. Just a little thinner. When I tap on the magnets with a screwdriver I'm only getting output from the bridge pup. Should I get output from both? Is this possibly wired incorrectly? I know the schematic is hard to come by? Thanks very much.