Given two basses that are virtually identical in every respect but for one having frets and the other being fretless, which would have higher action as measured by the distance from the frets to the strings on the fretted and by the distance from the fingerboard to the strings on the fretless? Anyone use feeler gauges to compare? Any comparisons with fretless conversions or double necks? I change my own setup by feel, but for my purposes here, measurements would be helpful. Of course, opinions and guesstimates are welcome.