Latest swing videos (filmed yesterday morning, just sent to evolvr just now). I haven't made any changes from @Grizvok's video, but I do occasionally make a few swings with that arm change. I am definitely doing what is described there as the amateur style (also, you're a better public speaker than you give yourself credit for).
I am just starting this challenge and curios, is there an issue if I look back at my scores and record shots retroactively to the start of this season? Fortunately I have every round in GamGolf so I can find the scores. Worst case, I can just start from here.
Over my golf life I've had this problem off and on.
I've used 2 swing thoughts (not at the same time) that seemed to help me.
1 - You can try visualizing your finish. Then focus your swing thought on "getting to the finish". That one seems to be the one I go back to and always seems to work for me. I just keep my swing thought as "Get to my finish" and it seems to help a myriad of issues, including weight shift.
2 - There was a period of time about 10 years ago where I was struggling with this and the swing thought that worked best for me was actually to just move my divot. What I mean by that is make your swing thought something like "Divot after the ball" or "Low point after the ball", in that case focus on making the low point of your swing after hitting the ball. I found that was better actually focusing on weight shift.
3 - I saw Greg Norman give a presentation one time. He said he's swing thought was always to start his swing with his core. That one never quite worked for me, but I get the idea and you may want to give it a try.
Both of the first 2 have helped me over the years at one point or another. So, go ahead and give 'em a try. If one of them works for you, great. If not, let us know what finally does work for you.