I'm thinking about getting a Fender Marcus Miller signature bass and changing the preamp and pickups. Would it be worth it if I change the preamp and pickups to sadowsky? I already have the Tech 21 bass Driver DI, but I think it would be more convinent to have it inside the bass. I seems like an easy task since the Marcus Miller bass already has the holes drilled out and space for the sawdosky preamp. I heard Marcus is using Bartolini pickups, but I can't find them under $200, sawdosky seems to be cheaper. Is Bartonlini worth it?