Yes, that’s my “former” swing. I felt way too close to the ball with the new swing, and was coming drastically out-to-in.
(For what it’s worth, my previous instructor built my “former” swing on a template of Rahm and JT.)
I followed your advice, @iacas, and took a lesson with a different instructor. He pointed out how much steeper my downswing was than my backswing, and how much lateral motion I exhibited. He attributed this to an overextended back that twisted, rather than turned, through the swing.
This all made sense to me, but I am skeptical of his proposed solution: to keep my body weight over my legs by standing closer to the ball, arching my thoracic spine (instead of maintaining a flat spine as I had been previously taught), and having what feels like an extremely flat swing plane. I did nothing but top and hook the ball when I tried to follow his instruction.
He did send me home with two annotated videos summarizing our lesson, which was an excellent touch I think all instructors should adopt. I’ve attached two stills from these movies comparing my current swing (left) and my attempt to implement the lesson (right) at P4.
I went back to the range this morning with the intent of working on this new technique, but upon reviewing the video I am still swinging my old swing with a few small modifications inspired by the lesson—my swing plane is slightly flatter, and I’m standing closer to the ball with a natural spine curve. Unfortunately I’m still coming OTT and sending the ball 20 yards left or right of my target. Here’s a video of one of my best swings, in which the steep attack is still evident: