Ordered two pots, both were within 10% tolerance. One was 480k and the other was 510k. I used them with my Precision Bass Deluxe with Dimarzio Model P and Model J pickups. The higher value pots keep the thicker sounding pickups from sounding dull.I prefer linear taper for volume pots, contrary to most recommendations. One a logarithmic/audio taper pot, most of your adjustment happens right at the beginning of the sweep (10-8) while linear pots give you a smoother/wider range of adjustment. I use these same pots in my SG for volume, logarithmic pots for tone though.