Ok here's the scenario. I've recently quit a band that played loud - and I would say relatively modern sounding - rockmusic. Now I have joined an outfit that is way different. The drummer has a more relaxed approach and I would describe the sound as being quite "oldschool". I recently laid bass tracks on a couple of songs where I borrowed an old Rickenbacker with old rounds and a Höfner with flatwounds. The result was really good. I thought these old basses sounded huge. They just had a certain fatness to them... Now I am left wondering if I can coax a convincing retro-sound out of my Fender Precision that is equipped with an active Seymour Duncan pickup. Unfortunately the inherent sound of the bass is quite hi-fi and the two top strings' treble content sound almost brittle-like if that makes any sense. Can I change the sound of the bass by putting on some flats?... I've heard that flats and active pickups isn't an ideal combination. I think John Paul Jones said that in an interview. Or should I just bite the bullet and install a passive pickup on my bass? ...or maybe it's just an eq-thing? Let me know what you people think.