I am an older beginner and am having the following problem: in playing certain patterns higher up the neck I will accidentally also fret the G-string when playing directly on the D-string above it. For example, on a simple pattern of 1-3-5-6-8 ascending from D-string up to G-string (using the typical fingering of middle, index, pinky, index, pinky and down again), I tend to simultaneously accidentally compress and sound the octave 8 on the G-string with my pinky as it plays the 5 on the D-string on the way down. This does not happen down the neck. The bass I have has (to me) a comfortable neck, with a 10” to 14” compound radius. I have experimented with different left hand positions up the neck, and can avoid accidentally sounding the 1st string if I assume a very uncomfortable wrist bend—one that I wouldn’t want to maintain for long. So what I am unsure of is whether it is a left-hand technique problem, or if is a matter of needing a more consistent and rounder fretboard—say 9.5” or 7.25”—that would offer additional space between fretboard and playing finger and thus avoid fretting the G-string on the way down. I don’t have access to other basses to try, so I am interested if others have encountered this problem, and what helped. For what it is worth, I have played a 5-string banjo with a completely flat fretboard for many years, and never have had an issue like this anywhere on the neck. Thanks for any suggestions or links.