Anyone know what this might be: I've got a active Fender CS Jazz (less that a year old) and I normally have the pot for switching pickups set flat (50% each neck and bridge). I was playing through the phones last night and rolled the bridge Pup off and Neck right up. As I reached what should have been full on neck there was no volume. In fact it was cutting out just over 3/4way to the point of being on max neck Pup. When I checked further by rolling back towards flat (50/50) overall volume seemed to step up considerably once the pot reached flat (50/50). I hope this makes sense to someone. I checked both batteries with a tester and they both seemed OK.