When last we saw our Dynamic Duo, student and teacher were walking toward the sand trap. Not to hit sand shots, but to learn several techniques (including The Great Wall of China!) to achieve the correct Impact Hand Location.
In addition, we learn about the Feel of Lag Pressure (dragging sand or a wet mop) and get a crystal-clear picture of how Ben teaches the Pre-Shot Routine and Ball Location ("How can you use the shadow of this trap rake to build a great golf game?"). Remember, though he's teaching a constant Ball Location with regards to the Left Heel, he also insists on varying the Stance width for the Chip, Pitch, and Punch Shots and for the Full Swing. With the Head remaining centered between the Feet, this automatically produces a changing Ball Location in relation to the Left Shoulder (Low Point).