I have a faded SG and am replacing the stock pickups with Duncan 59s. While I'm at it, I figured I might modify the control setup. I miss having a master volume control, but I also would like to keep the ability to have individual volume control over the bridge and neck pickups. Also, I never, ever use the neck tone pot (I sometimes use the tone pot on the bridge). So, what I was thinking of was wiring it so that the four knobs function as follows: (1) bridge volume; (2) neck volume; (3) master volume; and (4) bridge tone. Is this possible? I don't really know what would happen if I had, say, the individual bridge volume at 4 and the individual neck volume at 7, and then started turning the master volume knob down, but I'm not so concerned about that. I'd be happy as long as the master volume worked like it normally does when the individual volume knobs are both at 10. I probably won't be doing this mod myself - I always seem to have problems soldering with gibson 3-way switches, so I'll probably take it to my tech, but just wanted to know if this is something is possible.