okay, so i have this 1982 Squier Jazz Bass (MIJ), and it's got a little quirk. when i first got it, i noticed that if i turned both pickups up all the way, the output would occaisionally cut out (if i shook the bass or hit the body, it would come back on, implying some sort of short). if i turned the bridge volume down to the 9 or less, the bridge pickup still acted finicy, but i didn't lose the output from the neck pickup like i did if the bridge was turned to max. i had another control plate kicking around with all the pots, so i swapped it in and for a while, it seemed to help. recently though, i've noticed the bass having the exact same problem, and i've noticed that the bridge pickup can be made to cut in or out by simply tapping on it. first off, i'm no electrician, so pardon me if any of the following is stupid: i'm assuming my bridge pickup is out of whack, and needs repair/replacement. does this sound right? why should it be that if my bridge pot is turned all the way up and the bridge pickup kicks out, that i lose output from both pickups, but if the bridge pot is turned down slightly, i only lose output from the bridge? this doesn't make any sense to me, so can anyone more familiar with electronic set ups tell me why this might be the case and what the implications of it might be? keep in mind, it's had this same problem with two completely different sets of pots, so i'm doubting that's the problem. thanks in advance.