Go back the way you had it, because you just activated the poles, the baseplate, and the cable shielding to "hot" Next, reverse the hot and ground wires on the two single coil pickups instead. They usually don't have a shield, or if they do, they still have an independent hot and ground that you can switch while leaving the shield alone. Shields should always go to ground. In the case of the V2, the shield is connected to the ground wire of the pickup internally, so there's really only one way to wire that pickup. I can't stand pickups that are wired that way. You need to reverse the phase of the others instead.