Although I've been playing bass for over 30 years, I have never tried to replace my pickups. I am looking for a new set that isn't too complicated to install. My number 1 is a 2007 Fender Jazz, but I still have a 1992 Yamaha RBX 800A that I bought when I was 18. It's a pretty good little axe for the price and its neck is really comfortable to play. However, it still has the cheap stock PJ pickups and I am interested in swapping them out for something better. I need advice on a number of items. I generally play a range of stuff that I would classify as progressive/metal. On a lark, I put flatwounds on my Yamaha and I really like the feel and tone of them. Since I am dealing with an instrument with active electronics that seems to limit my options for replacement pickups. If I had it to do all over again, I would probably not have been enamored with the idea of active electronics when I was in my late teens and early 20s, but just stuck with passive. Is there a relatively easy, good way to convert an active instrument to passive? Any recommendations on what pickups to get for the instrument? I want to find a "meatier" or even "angrier" sound that I can't quite get with my Jazz. Thanks.