Has anyone seen Steve Elkington's "Tour quality short game" video ? All based on TGM concepts and with high praise for Mr Ben Doyle.
The 55mn video does not dig deep into the technical aspects, but we have Alignment Golf for that. He mentions the "line of compression", the principle of the flat left wrist (without explicitely naming it, I wonder if that was not inadvertently cut out), and introcuces the three hinges via their feel. He particularly insists on the precise position of his left heel with respect to the ball. That's about all there is on technical aspects but the spirit of the video is more about analysing the shot he faces and deciding on how to play the shot. I found the video interesting and well worth the money, even more since I am in the process of re-building my short game from what I've learnt here.