[quote name='Telebass' timestamp='1458057160' post='3004255']
No. It MIGHT reduce it a bit...The only way to stop hum on a Jazz is to have both pickups at the same output (eg fully up), in which state they are a humbucking pair, or retrofit proper hum-cancelling pickups, which may, of course, alter the tone somewhat. Shielding the cavities can also help. Shielding AND the metal plate might just be pretty effective also.
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Mine was silent with decent shielding - Tiny fractions of an ohm in resistance