Originally Posted by iiipopes
What it sounds like you want is a 250kohm audio taper pot for the volume control to keep the resonant peak down and flatten the pickup response, and a 500kohm linear taper pot with a .047 capacitor to go from as bright as this pickup will do all the way down to dub tones.
Other way around. Linear tone pots tend to behave as switches. You would have to roll down one-half the rotation to get to the same resistance setting as a 250k tone pot on full, and three-quarters of the rotation to get to where the average 250k log taper tone pot is, at about one-fifth of the rotation from full. This means that most of the usable range of resistance variation (For most pickup impedances, anyway) is packed into a very small range of the rotation, while the rest of it has little effect.
For the volume pot, it is arguable that the linear taper is smoother, but there are enough threads on that debate that the OP can do a search. In any case, 250k would not be preferable if he wants a brighter or hotter output. I agree with Bongomania, however, that pots tend to make subtle differences.
As a side note, indeed 250k will lower the resonant peak, versus 500k, but the frequency response does not flatten. It does the opposite.