The golf swing is a reaction to what the clubface is doing. If I set up 10 people with an open face, some of them would swing over the top, some would fall back and pull left, some would flip the right hand at the ball. They’d do different things, but all of them would be reacting to what they see the ball doing—and that comes from the face. If closed the face, you’d see them pushing the handle forward, turning through more, and so on. Golfers adjust to the face.