Assume your bass neck is in horizontal position. Ok, when you fret the notes with your left hand, are your fingers in 90' angle(straight upwards) looking from the fingerboard? I just noticed that mine tend to be in something like 45' degree angle, fingers pointing more towards the upper horn than to the ceiling. And I think this ain't the best style. Any suggestions, should I start to focus on my fingers and try to get them stay upright?