Do any of you guys use a MM as a passive pickup? There are replacement ones that are passive, right? How do they sound passive? I tried a Stingray out this past Friday and I didn't like the sound. I love the extra boost to the bass, but the trebles sounded hard and the midrange wasn't quite there. I didn't really hear any body and it just didn't sound natural no matter how much I tried messing with the settings. Do you think this was the EB preamp/eq or the pickup design? I read that MM pickups are great for getting more low end of a bass and was thinking of putting one in my gestating J-bass project, but now I'm not so sure.