Preferably you want your fingers on the back and underneath the ball and as you release the ball your fingers come up the side.
Try to think of it in different mechanics than what you might have been told before. Try to always keep the weight of the ball on the pad of your hand on your index finger. If that makes sense. As you bring the ball back on your backswing, have the ball weight on your index finger and as the ball gets to the top of the backswing and begins the downswing the ball needs to be rotated so your ring finger leads and the ball is again putting pressure on the index finger.
Try to make your ring finger always have the lead. If you go into your release with your ring finger in the lead, your hand should naturally turn the ball.
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