I'm having trouble using my index finger while playing bass. I'm not sure if it's my technique or if my index finger is just too short, but it's difficult for me to make good contact with the string because when I place my hand in a position so that my middle finger is playing the strings comfortably, my index finger seems just a bit too short to reach. I play bass with my middle and ring fingers instead because those two fingers seem to line up better, but I'm getting into some more advanced playing and I'd like to clean up my technique. I noticed that I can use my index finger more comfortably if I turn my bass like an upright, and I can hit the notes in a much cleaner way with my index finger than with my ring finger, especially when I'm playing faster. Is there anything I can do that would make it easier to use my index finger instead of my ring finger, apart from turning my bass sideways?