Originally Posted by
WeirdBits
You have some options:
You can alter how the pickups are connected to the switch so that a resistor is linked in for the bridge only pup position to reduce the effective value of the 1M volume pot (albeit with some side effects).
Or, instead of just the resistor, add a cap/resistor filter combo to drop off some of the highs to warm it up a bit to compensate for the 1M pot.
Or, compromise for both pups and see how a 500K pot sounds.
Or, I guess you could even try using a dual 250K/500K pot and set it up so the bridge get the 250K wafer and the neck adds in the 500K wafer giving effectively 750K. Just throwing out some quick ideas.