Now, several times while playing live i've had problems with the amp (either my own, or rented/borrowed backline) hissing, buzzing, generally picking up some interference somewhere. This is mainly with my Ric. The cables are all sweet, FX are sweet, etc, etc. Could it be the Ric's pickups picking up electrical interference or something? I've in the past looked @ the grounding in the Ric and it looks OK (thin-ass wire to the bridge). Is there anything I could do/use to stop the noise? Ferrite choke over the instrument cable? I've got a noise gate but rather not use it. ???