The thing is, for years I played almost exclusively fretless, with no lines. I'm wondering if it's like riding a bike, in that it will come back if I just do it regularly (my hope is to play fretless as much as possible) or if I really need the lines. In the past my intonation has been very good without the lines. I don't think the lines will mess up my tone either. I guess maybe the question to ask is whether or not you guys even need to look at the fretting hand when you play fretless?
Also, I'll admit there's an elephant in the room. Inside my tortured mind there is a little voice that says lines are cheating (since I've never needed them before and might not *need* them now). There. I said it.
I also recognize that Jaco played with lines.
Fretless players, what's the consensus?
John