forgive me if i this has been covered and i missed it because i did look. would like some input here. thnx. - i have a thumb bo 4 w/mec golds (using w/ eden wt-550 w/1-3 eden 2-10's depending on the venue) while i like the overall sound as is it... could be better, more defined. the general consenus is barts, but here MY SNAG. since $$$$$$$$$$ is a consideration - - will i see more results from changing just the pre or just the p/u's? i really like the mids on this bass. i prefer a darker sound. just enough high for definition.