It's been a while since I perused this thread. WOW. Started to read, but was overwhelmed. Anyway, on to a thought I had. You can skip the history paragraph if you like. It's likely that this has already been covered. If so, I apologize for wasting a few minutes of your time.
I was intrigued by your method and used it with some success, my main problem being how to judge the value of the moving dots. In a PM session with one of the experienced members of my CC, I learned his method. Putting the two together increased my success somewhat. Then I had a blinding flash of inspiration. I set up a pretty much level 40 foot putt at Kiawah #1. (Tourney Speed) I wrote down the dot speed data. I replayed it over and over, timing it, checking distance traveled second by second. It took 5 seconds for the putt to reach the 40 foot mark. It continued for the anticipated 2 feet. In the first second it traveled 12 feet - 2nd second 10 feet. and continued to decelerate at a rate of 2 feet per second per second. Watching how the putt broke, the faster it was going, the less the effect, just like in real golf.
Bottom line: On longer putts, especially, it seems that the early crossed lines have a diminished effect due to speed. The latter, more, due to slower speed, with an exponential change in the middle. Kind of makes my head hurt. Not sure how this could be applied. Just food for thought.
Anyway, thanks again and again.