i'm looking for a dimarzio model J(creme or black) to purchase or trade for either my EMG J pickup or a Dimarzio Ultra Jazz pickup. the emj needs the 25K pot for volume/tone, but works fine despite a lot of use. i'm no longer running active so i don't use it. the dimarzio pickup is less than 6 months old and has seen minimal use. it sounds great, but i would rather go with the model J sound than the ultra jazz. oh, i'm only looking for the j bridge pickup. my bass is a PJ and i'm quite happy with the p pickup that is already in there.