Neil,
Just thought you would have some cool revelation about the sketches, all kidding aside I appreciate your insights.
I have always enjoyed looking at the drawings but funny when I first started working with Pete Dye, on occasion when he wanted to show me what a feature would look like he would get down in the dirt and shape with his hands an idea and ironically he over built the feature in the dirt so that it had a 3 dimensional look.
Same idea different approach.