What is a snap roll? By this I mean WHAT EXACTLY IS A SNAP ROLL? Does the nose of the plane move up down or in a circle? what does the tail do. How much movement of these parts of the plane does it take to really look like a snap, and what percent of throw is going to get it to do the movement? I ask all these questions because it seems one man's snap is another man's shaky attempt at a roll.[&o]