I have a '52 Re-Issue with a Callaham Vintage compensated bridge on it. I just replaced the bridge PU with a Harmonic Design P-90 (fits in the standard bridge mounting hole). The Harmonic Design P90 does not have a metal plate on it, and the bridge of my Tele is not currently grounded. It does hum (duh!), and through reading many posts on similar subjects here, I have found that adding a temporary ground wire from the bridge to ground solves the problem. It was a bit funny as it was not the strings that were humming (as I would have guessed), but just a constant noise threshold that went away as soon as I touched anywhere on the control plate (but not the strings or bridge). Now, for my question;
I want to permanently ground the bridge, but I'm not crazy about the idea of seating the ground wire underneath the bridge. It just seems like this is contrary to the idea of keeping as much contact between the bridge and the body of the guitar as possible. Can I install a ground wire from one of the pick-up screws for the P90 back to the common ground on the tone pot? These screws are in full contact with the bridge, and then I wouldn't need to have wire between my bridge and the body of the guitar. Also, the P90 has adjustable pole pieces, so I'm not changing the height of the PU anymore with the mounting screws. Or, can I simply solder a ground wire to the back of the bridge and run to common ground? Not sure about how good the actual solder connection would be (that bridge is a big heat sink and I'm concerned about how good the solder connection would be). Anyway, looking forward to hearing your thoughts. Thanks!