I am looking into getting a new bass soon, and after going through a lot of choices I narrowed it down to the Yamaha RBX170 and the Essex SPB-57 Precision bass. I've read excellent reviews on both these basses, but I need help deciding which one to get. If I buy the Essex, I will swap the stock pickups out with Seymour Duncan 1/4 pounders. I generally play older rock and metal, and very rarely some jazz. Thanks for your input.