Bourns recently introduced a high quality guitar pot, the 95 series, in the two common values of 500K and 250K.
Of course, I had to bring some in for stock, as well as try them out.
I have found that a lot of "economy" pots tend to be noisy when used in guitars which are then used with high gain amps, so these puppies had better perform...
I'll post my results soon.