If you all haven't guessed, this is my month to change out pickups. The latest surgery involved swapping the standard Squier II pickups in my P bass for the Seymour Duncan Basslines Quarter Pounders. Stock, this bass was a pleasant enough incarnation of the P: reasonably round tone, not much variation, some depth. With the new Basslines, it has gotten a lot more aggressive, with very deep sounding low notes, without otherwise changing the tonality...in other words, it sounds like the same bass, only deeper and louder. I did an A/B with my mutt fitted with Select Humbuckers and it made that warm, sweet bass sound like a wimp! The P sounds terrific with my Musicman HD-130/Hartke 410XL rig, but the test will come when I bring my Ampeg B100R home from the rehearsal space. The Ampeg is more in line with my taste, and we shall see if the Basslines make the grade there. One problem I had is that the covers slipped off the pickups quite easily. Since the covers have the screw bosses attached, when the cover isn't on the pickup, it falls to the bottom of the pickup slot. I sliced the packing foam that came in the Seymour Duncan packaging in half, and put each half under one half of the pickup, then made sure that the pickup was firmly (or, as firmly as possible) seated in the cover before I screwed it into the bass. Now the pickups adjust very easily...although I still need to fine-tune their height. Pretty good transformation for $65. Now I just have to keep my hands off my other basses that still sound good with the original pickups.