The point is that your 3rd finger is freeer to move if the 4th isn't anchored in the pinky ring, but can float up and down a bit as your 3rd finger works. If this isn't true for you then you are exceptional. You needn't lift any finger higher than where it sits when the valve button is all the way up. Can you place a dime on top of each button and play without them getting away? If you can actually play without making space between the finger and the button you have excellent control.