What is? or Is there a proper name for a Jazz Bass that has a Musicman pickup in the bridge position? Is it considered an M/J? (like a P Bass with a J pup in the bridge position is called a P/J Bass) or would it be a MMJ? or What? I happen to own a (SX) Bass like this, it sounds fantastic! The MM pup in the bridge position sounds So much fuller, warmer and has a lot more growl than the standard J pup; My next purchase/build will most definitely be another one with this configuration. Anyone else experience this at all?