Been there done that....
I was a presenter for the 2008 MIT Better Golf Through Technology National Teaching Summit.
My research was on the value of the "twistaway" to the swing of a common typical slicer or higher handicap golfer.
For this project i was only allowed to WEAKEN GRIPS, and could not adjust the flying wedge rotation, or anything else I might use in an actual lesson.
I was allowed to show the golfer the "twistaway" for 3 minutes.
Not 3 hours, or lessons, or weeks, or months.
I couldn't, and didn't draw lines, use the term right forearm takeaway, or steepen any shoulder turns.
I COULD NOT EVEN MENTION PATH. And I didn't.
This data was from Trackman.
The golfers who are listed in the results who have "control" data, were allowed to practice what ever they thought would make for better shots for 3 minutes with NO IMPUT FROM ME.
I then taught them for 3 minutes each, just like the golfers who have no "control" data.
I think the results speak for themselves, and should end this discussion for ever and ever and all times. But it won't.
Here it is: