My RG570EX produces "hum" (or non-grounded noise) at high gain settings when I'm not touching the strings. When I touch the strings at the neck, the noise dissapears and then when I have my both hands on the strings, the noise starts again. My right hand rests in the strings near bridge pu.
I have notices this problem in every guitar I've played (that's not many). Is it so that when a guitar comes out of factory, it's grounding needs to be done again? My RG is brand new..
All the guitar's I've played have had factory setups