Sergio showing excellent right leg loading combined with transfer onto the left leg with torso rotation intact & straight into the 430 delivery path & releasing with a saved right arm and a driving right knee in unison with the moving right arm and club mass into a pivot turn…Excellent stuff
In some ways it looks better than his regular swing. You see all the right hand intentions when the left hand is off the club.
Love the mod 2 going on there… Also maybe the pre rotated head ala Duval & Sorrenstam helps with the form
I would need DTL confirmation but it seems like the right elbow is well tucked.