I have a 74 jazz bass w/ maple fingerboard that I'm thinking about modifying with some replacement pickups. I feel right now it is a little scooped in the mids and I can't get a very punchy tone when I lean on the bridge (ala Jaco). Obviously this bass is in it's zone when slapped but I prefer to do that kind of playing on my Lakland 55-94. I want my jazz to be used for recording situations where the engineer is expecting a great vintage j sound. The live aspect is not as important because my Lakland is my main all tone/style bass. What pickups out there should I focus on to get my jazzbass to sing? Also, how much difference does a jazz sound with a rosewood board? Is that part of my problem with this bass?