So I'm a new marching snare player and I've been practicing traditional grip for about 3 months now, and my technique has improved a ton over these months. But as of yesterday, my pinky in my left hand just decides to fly out from under my ring finger and no matter what I do I can't stop it. Anyone have any suggestions?
Some players will link the third and fourth fingers together with an elastic band until the fingers behave themselves. And when practicing, focus all your attention on that problem finger.