Sean if you look at your DLT video, your hips are moving forward in your back swing also. If you look at the red line on your butt, when you reach the top of your back swing your right butt cheek should be behind the line by a couple of inches at least, and in the transition into the down swing after your slight hip bump to the target you have to take your left butt cheek back to the position of a couple if inches behind the red line. We tend to forget the hips are oval in shape and are not circular, if the red line was a wall and you were to turn your hip with your butt on the wall, it would push your left hip towards the ball
Early Extension can be caused by:
* Clubs that are too long
* Standing too far away from the ball
* Having too much weight on the heels at address
* A poor swing path
* Physical limitations
Physical Limitations that can cause Early Extension:
* General lower body stiffness, joint immobility or muscle imbalances
* Poor Lead Hip Internal Rotation
* Poor segmental separation of upper and lower body
* Inability to control pelvis
* Weak glute and abs