Weirdness abounds... A modded 76 Precision with 62 CS P and DiMarzio Ultrajazz and a 95 P Lyte with new EMG PJ's and a BQC are my two main basses, mostly the Lyte because it's lyte. Up until a few weeks ago, I was running dead Chromes on both, and now I'm back to new XL nickel rounds. When I first got the EMG's in the P Lyte earlier this year, I was using Chromes, and I sat down with it and my Precision and tried to EQ the BQC into sounding as close to the P pickup by itself with tone on full as I could. Actually got it sounding quite like it by cutting treble a tad, cutting bass a half a tad, and boosting 800hz 1/3 past center on the mid selector. EMG's are cleaner but the tonal response was right on as far as I was concerned. Cut to the XL changeover...the first few gigs I did with them were on the Lyte using the EQ I always had. Sounded good to me but a little bright for my tastes. I pull out the Precision one night and it's complete culture shock. It sounded so different and so much ballsier that our drummer's girlfriend, who doesn't know much about music but is a fan of it, said, "That bass sounds way different than your other one, doesn't it? I can tell. It's not my imagination, is it?" That's a pretty big difference if she noticed it. So the next day, I sat down with the Lyte and the Precision again to match the P with the BQC. Bass was still the same half a tad cut (I actually leave it centered for gigs...adds a little warmth and it's not that big a difference), but I had to cut treble almost completely off and boost 1khz almost all the way up! And since then the sound has been much more ballsy and in line with the 76 on gigs. Tonight I put a BQC into my Guitar Factory 4-string, a custom neck-thru 24-fret bass with 90's EMG PJ's and a Kahler whammy bar, also strung with XL's. Sat down with my Precision and the Lyte to see what EQ sounded closest, and sure enough, the same EQ on the Lyte worked about identically in the GF bass. It's a neck-thru with a lot of sustain and active pickups so it wasn't identical to the Precision of course, but again, the tones lined up. This led me to a discovery that I'm sure most of you all knew a long time ago but I just learned tonight...passive pickups react much more dramatically to different strings than actives. I assumed that because the string changes were the same, the basses would react the same. Boy was I wrong! Total night and day difference between the EMG's and the Precision's pickups. And the Lyte and the GF bass ending up with the same EQ to sound as close as they can blows my mind. I guess that makes sense because passives depend a lot more on magnetic relationships, but I never thought it would be that dramatic a difference. Well hey, look at me learning something I never knew before all on my own!