Bump hips an inch, keep the sternum still on driver
With the driver it is still just a one-inch hip bump for everybody, with the sternum staying still. The common mistake is bumping the hip and then adding an extra upper-body move on top of it, which sends you swinging over the top of the ball and produces shots low on the face, thin contact, and even the occasional top.
Channel: PorzakGolf
Watch official source at 0:45Why this context matters
Said while correcting a student's driver setup.