In the video done with one of your students, just prior to the start of the swing you check your extensor action. What is the feel you are trying to get at this point before the swing begins?
Hi dt, and welcome to our site.
You've asked a good question, because Extensor Action is indeed the last thing I Feel before Start Up. Over time, it actually has become my Start Up Trigger. What I Feel is the Push of the heel of my Right Hand against my Left Hand thumb. This stretches -- but, per 6-B-1-D -- does not move the Left Arm. I then take that Stretched Feel to the Top, maintain it through the Start Down and then Drive it though the Ball to the Finish of the Stroke.
After years of training in the 24 Components, the Three Zones and the precision alignments of the Mechanical Checklist of 12-3-0, this is the essence of my Action:
1. I apply Extensor Action at Address.
2. I take it to the Top.
3. I Drive it through the Ball.
Simple as that!
Extensor Action is a vital concept, and I will soon put up a video that will show you how to learn and apply it. It is yet another cornerstone of TGM Training that remains undiscovered in the world of conventional Golf Instruction.