Unique in how his weight stays deep, almost heel deep all the way thru the swing. A shallowing maneuver to a fairly steep transition it seems. A little of the Fowler, Phil "pull back".
Dear DCgolf,
There are many ways to develop lower body dynamic balance stability margin prior to, or even during the back swing. The more margin, IMO the less injury potential, and has been reported in the 'Bumpy back...' thread, more distance and less dispersion.
Try it, IMO, you'll like it.
Regards,
art
PS. I am working on an analysis and test program that should show that those professional golfers who rotate their hips and pelvis exceptionally fast in degrees per second, are in fact by their geometry and velocity of the lower body, trying to develop some additional dynamic stability, but in a very inefficient way ( ie. Rory McIlroy, greater than 700 degrees per second peak). Additionally, many other aspects of this swing style encourage lower back injury, and increases in upper body path and position errors, for those that try to copy this style of swing. I have no data regarding the kinetics and kinematics of Jason Dufners swing, but would GREATLY appreciate knowing how to obtain these data.