Very strange thing happened at practice last night. I was using my Lakland 55 fretless with an unlined neck, for the first time at band practice and was in tune with the keyboards and guitar player on two fast tunes. I was using the more mwah sound with the mids cranked up, bridge pickup, and the selector switch towards the bridge. Everything seemed fine except for the unbelievable reach needed to play the songs in first position!! Then all of a sudden, we played a slower tune I was constantly flat, and my finger position, based on the fret dots. had to be "sharped" by literally 1/4 of an inch to maintain intonation even though the song was in C and then modulated to D. I was using third and fifth position with my middle finger on the C and D on the A string. I have to believe that even on a fast tune, that a quarter inch above the dot difference had to be noticeable? Once I played the bass with a more normal, no cut or boost the active tone circuits and 50 50 balance between the pickups, the intonation seemed to improve and I didn't need to be as "sharp" based on the dots. Does having a Jaco like midrangy type of tone cause some sort of weird harmonic stuff that can make the bass's intonation "sound" flat but really isn't, or is it really flat. Is it just that it's so much more of a cutting through sound that it was just more noticeable by the other band members? The reason for my concern is that the other two songs, using the dots as guides had absolutely no one complaining, and the last few songs we did seemed a little better in tune. It was only this one ballad. It's also strange that playing with a piano trio on 2 four set gigs, the only really difficulty I had with being in tune was on the very high notes above the octave markers, mostly on the G string, but the rest of the bass seemed in tune on all songs, slow and fast with this same amp, same mwah, midrangy setting. Any comments.