I just got a chance to see and play the Fender Black top Jazz. Interesting. You can clearly get regular P Bass tones by only using the neck p pickup, but you get something interestingly different with the p pickup in the bridge position. Not as cutting as a J, definitely more attacking then just a P. Would it be fair for me to say its sort of like what a passive MM would sound like had Leo done it? I have owned BC Rich basses that had this configuration, and they didn't sound exactly like this (maybe because it was all those years ago). The Fender Black Top Jazz was at Musician's Workshop in Marlboro, NJ. They have a very decent selection of basses, including maybe the largest choice of Eastwoods I've seen in the tri-state area. If you go try it out, tell them Tom Richards told you about it. I encourage others to try this bass and tell me and all of us what they think.