Awesome. Thanks Mike! Funny, I've seen you post that Key 4 video before. I've never concentrated on that because the still shot of the initial demonstration of the incorrect back swing has the hands super low and stuck behind, and I do that but then my compensation to not come OTT is to raise the arms and dip the head, which always looked different to me so I thought that wasn't what was causing my issue.
Actually, I'd seen my club head getting under plane at A2 and I've been working a lot to fix that, doing lots of pre-shot stuff swinging back just to A2 trying to have the club parallel to the target line there. But to accomplish that I've just been yanking my right elbow back even further, getting me even more stuck behind and across the line at the top even when I don't get as under plane at A2 as I am in the vids. Also, I have been trying to turn earlier, though concentrating more on the hips than the shoulders, and I can feel the too wide stance was basically making it impossible to do right. I think the narrower stance is going to help a lot. You noted the wider stance is more okay with the driver, and I've had a bunch of rounds recently where I've absolutely dominated the driver and solid with the 3w and pretty much terrible with all other full clubs and have put up decent scores just cause my home course has a bunch of shortish par 4s where with a big bomb off the tee for me I can hit driver then partial 60˚, so I can par the shorter par 4s and a couple of the par 5s as long as I don't have a huge miss on the 2nd shot, and if I get up and down a few times and putt okay still score in the low 80s even with only one or two good full iron shots.
I'm at work right now so no clubs or balls to hit, but I get in early and no one else is here so I've tried a few dry swings with a narrower stance and following Erik and Dave from the video. I can already feel the point. Surely lots of work to get it working even with balls in a practice session, much less at game time, but I'm pumped!
One other question. I tend to break my wrists late, so my currently natural point for A2 is with the hands higher than Erik's or most other good golfers. I've always told myself, hey, Stricker does it, that's not causing my issues. Will it help me shift to consistently do as suggested in the video (turn at a faster rate and keep my elbows closer together so I don't draw the right elbow back too far and get stuck behind) to also work on breaking my wrists a bit earlier and getting to A2 with my hands lower?
With the time change I get home with some light now so I'll try to keep up the video work and post updates.