Hi. I have noticed that my pinky and ring fingers on my left hand tend to be a bit rigid. Like, they don't hover close to the fingerboard as my other two. I remember seeing some professional bass players and all of their fingers were really close to the fingerboard. It barely looked like their fingers were moving when they pressed the strings down. Does anyone else have this problem? Any proven ways to fix it? Or is this a non issue if you can still play the notes smoothly?