I know this topic has been done, and i have looked through all of the archives, and still have a few questions: Ok...Warwick Thumb 5 '97, active mec pickups, 3 band eq. i want to change the pickups (and most likely the preamp) because i am looking for a less harsh tone...i like the midrange and the aggressiveness of the bass, i just don't like the brittleness of the highs. From the research i've done here, elsewhere, and from playing various instruments, i think barts are the way to go because they tend to be warmer, and fatter, but still with a strong midrange punch. i'm thinking the 59J1's...the question that i have is that on the bartolini website it says these pickups are recommended for string widths measuring 66-72mm. well, the string width at both pickups on the Warwick is about 63.5mm. so i'm wondering if i will get a balanced tone from all strings or if there will be some unwanted inconsistancies. the other question is that the mec pup's are active, whereas the barts are passive, so i'm wondering if the output will be unacceptably low (if i don't also install a bartolini preamp. So, i am desperately calling on anyone with a Warwick Thumb 5 string that has made this change (59j's replacing mec's), who can answer these questions, and give me any other thoughts, reviews or information. thank you very much.