I always find lines irritating - just a tiny bit off
I've been following this thread and this kind of points to a question I've always had about fretlesses and maybe it would help Tupac decide as well.
A fretted base can never be perfectly in tune. Even when the intonation is at its best, it will still always be a little flat in the lower position, and a little sharp in the higher positions - not much -2/+2 or whatever. But it is even when the harmonics are right and the 12th fret is dead on... Just the way it is.
* If you don't believe this, get your fretted bass out, make sure its intonation is perfect. Now fret the 5th note. Now fret the 17th fret. The 5th should be a little flat, and the 17th should be a little sharp. If only one is true, then its intonation is not 100%. They should be an equal amount of flat to sharp. If you still don't believe me, get a chromatic tuner and fret every note chromatically.
So with an unlined fretless, you don't rely on the fret lines. You rely on your ear and if your ear is solid then you can get perfect intonation. But if you play a lined fretless and use the lines to gauge where you should play, rather than your ear, then you should still be just slightly off, like a fretted.
Now most people may not be able to hear the difference, but anyone that can play an unlined with great intonation should.
So to me, at least (and correct me if I'm wrong so far), it would seem that to play an unlined fretless you would need to devote most of your time playing it, so that your ear can truly develop. Where as someone who is playing a lined fretless (using the lines, not the ear) can kind of switch back and forth between a lined fretless and a fretted without hearing much a difference.
Does this seem accurate? For you guys who play both lined and unlined fretlesses, when you play your lined, do you follow your ears to tell you where to play or do you play right on the lines? Do you hear the slight difference in pitch between the two? Or rather, if you played an unlined fretless and then a fretted, does the fretted sound somewhat out of tune (at the lowest and the highest frets)?