Opinions please: is it harder to go from 4 string to 5 string (or 6 string) or is it harder to go from fretted to fretless? There's no right answer, just curious. My experience: Have tried 5 strings twice in my 28 years playing and could never get the hang. Added a fretless to my arsenal 6 months ago (unlined!) and found it easier (not easy) to get into.