Yeah marnold, I too like the P-J concept. Fender originally offered this in both Precision and Jazz body styles, both with Jazz-width necks, built in the US. They then dropped the US versions, and in its place, came out with a Mexican version of the P body style, also with a J neck. I believe that at one point, there was even a Squier version offered.
Fender Frankenbass is built using one of the American P bodies, but with an old 1960's P neck in place of the Jazz. The dual tone circuit, active Bart's really make this bass come alive.
Between Fender Frankenbass and Mr. Bacon (my G&L L2K), I really have just about all the bases (excuse the pun) covered, except one, and that is fretless. Here's the empty slot that an SX bass just might fill. I'd like one of their toofless Jazz basses, but I really like the Lake Placid Blue, and it's not offered toofless. We'll see...