Hi again, my ibanez rg560 is in process to be electronical update, well it has 3 pot against the 2 classical pot in ibanez, one of that pots is the tone, and I will replace it with a fender TBX, the other pot wil be replaced by an EMG afterburner booster and the third pot is the volume, and I don´t know what pot will be better. The matter is I will use one single pot for two kind of pickups, the single that will be maybe the ssl1 and the ssl3 and one humbucker. The classical setup says to use 500 K for humbuckers and 250 K for singles, but I have one pot only for volume, well I´m looking for a two concentric pots in one, one with a 250 and the other with a 500, well does anyone knows where could I find them??? If there is not possible to get one of this, what could you recomend to me a 250 or 500???'