I have a question for you, what is the building block of your set up? What is the first thing that happens as you walk in to address the ball? I just gave you the answer, walk in. When you walk in to address the ball after you have taken your grip, the key to the rest of your set up is your back foot. After I take my grip, I walk towards the golf ball and step in with my right foot. I then sole the club and the starting point for the right foot is about one clubhead to the right of the ball position line. From there I establish my ball position by virtue of swinging my front foot ahead of the ball position line and then widening out with my back foot. So the foot routine is right foot towards the ball, take your aim, left foot towards the ball and then move the right foot back. Now if I switch from an iron to a driver the same routine will take place but the variable will be the width of my feet. You can see how much wider back the right foot is although we started with the same position as the iron. We can then look at a chip shot. Walk in the same way with your right foot, then bring in your front foot and then just replace the back foot as you do not want a wide stance. Notice that the ball is pretty much in the center of your stance because you did not move the right foot backwards. But the key here is to always start with your back foot, every time you start with your back foot it is like building a new home. One of the keys to a home is a good foundation, and the foundation of the set up is the initial step with that back foot. For those of you who aim to the left here is why. When you step in you are stepping in from way to far behind the ball position line. Look at where you foot is and look at what angle it is aimed at. For those of you aim to the right, when you step in you are standing on the ball position line setting the club behind the ball. Now when you go to swing in your front foot and widen out the back foot you can see how crooked your feet are. A simple fix is for you to go back and learn to step in correctly to begin with. The foundation is right there, not to mention that the grip is also a big part of that foundation. So in foot routine it is right, left, right every single time, it becomes a habit. It actually becomes a rhythm, I have listened to my feet on concrete and I can actually hear them go right-left-right. There is a beat to right-left-right. Well that is the rhythm of my golf swing and it is also the foundation of the set up.