i wired my p/ups with individual vol/tone on stacked 500k/500k pots and a 1 meg resistor. i figured i would go 1 meg cuz the 500k pots would have more treble i would need to roll off if necessary. but its like my tone pot only has full blast treble or no tone and my volume just has full on or no volume at all. to complicate this even worse for myself i have a series/parallel switch which only screws me up in figuring out the source of my problem. i wired the vol/tone controls with the volume on the top set of lugs and the tone on the bottom and just had everything wired like seperate volume and tone pots. as far as the output from this stacked vol/tone is concerned with the series/parallel circuit the p/up output from the tone just goes into the other volume pot that it is in series/parallel with, just like any other circuit. is the problem in the wiring of the stacked vol/tone or is it this connection to the other pot in the series parallel circuit? stew mac used to have a schematic for stacked vol/tone but they took it off the site. any help would really be appreciated.