I have a MTD Kingston Z5 five string bass, I love the bass as far as it's general sound and feel go. But I'm thinking about upgrading the pickups, I don't think the current pickups do this bass full justice. I'm thinking about maybe some model of Bartolini but don't have a clue as to what would be best and have a perfect fit. Any suggestions or insight? The type of music I play mostly is funk with a lot of slap, jazz, light rock, and gospel. Thanks in advance. I also need to mention that I'm also willing to change the preamp if needed.