I was flicking through a fender catalogue and i started reading the MIM basses page. And i noticed the Jazz 4 string has a rosewood fingerboard and the jazz 5 string has a pau ferro. As i flicked some more, i noticed no 5 string came with a rosewood and vice versa. Why is this? Because im a total noob when it comes to 5 strings And one little question... what puts the "upgrade" in the 2006 MIM P bass upgraded? What is the difference from last years model other than colour choice?