does anyone have any stories about adding a preamp to a reverend rumblefish? one of the basses i'm interested in is a rumblefish, but i'd also like the flexibility of a preamp. but since the rumblefish has a great vintage tone, i think most people buy them as an alternative to their active basses. just curious. if i bought a fish, i'd probably try a preamp anyway, but if anyone has any experience or heard anything about it, please let me know. robb.