Of course, Wulsy. But causes and consequences is exactly the point. Some poor sod is going to watch that video and conclude that throwing his hips into reverse is the secret to massive clubhead speed.
It wouldn't surprise me if someone takes that move and packages it into an instructional video and markets as one secret move to massive clubhead speed.
Just like Manzella says, when one group of the chain fires, it pushes against the previous group. He (Brian) uses the example of people standing on each others shoulders. The bottom one jumps, the next operson jumps and pushes against the person below and so on. That push back is this "Rory hip movement"
