Thinking about getting my first fretless bass, and the Squier Vintage Modified Precision fretless is really tempting. I'm concerned about the lined fretboard, though. On the one hand, it seems like the lines might be good "training wheels" for learning proper intonation. On the other hand, the lines might keep me from learning how to get proper intonation by ear if I ever get an unlined fretless. Thoughts? Suggestions? Thanks!