If I understand your question correctly, the answer is "No, a fretless won't eliminate the problem you asking about - it will exacerbate it" (make it worse):
with fretless, proper/exact hand-position is even more crucial than with fretted because, as BassChuck says, you have the additional/all-important issue of intonation.
(I play fretless exclusively, just fyi.)
When reading from a chart, regardless of fretted or fretless, try this:
rather than putting your music stand directly in front of you as most players do, move it 90 degrees or so to your left, facing your left shoulder, just beyond the head of your bass. (Opposite side, of course, if left-handed.)
That way you can keep an eye on your hand position/fingering *and* the chart at the same time.
If you need to watch a conductor/leader as well, try moving the stand about 45 degrees or so in the same direction so you can eyeball the chart, your fingering hand and the conductor...
"We become good only at that which we practice every day" - Auguste Rodin
Last edited by deckard : 01-18-2013 at 03:17 PM.