"One inch of right elbow bend is all that is needed to fully cock the left wrist."
This is the essence of what I wanted to know. Thanks. It sparked something that I remember Yoda saying about how small the amount of left wrist cock really is (from level anyway)Using Extensor Action definately produces a different feel. So if #4 is across your chest with a stationary head the right elbow bend will be as it should be and the left wrist cock will be as it should be? I have not given up the cocked right wrist it would seem, especially with the driver. A motion with a driver employing extensor action is a bit comical for me at the present time! Irons feel good because I have always like to stop at top. With the "farputtingstick" I guess I have always liked cranking up BOTH wrists in order to get to end.
Ya, we all kinda do it too (except Ted). Most people think to apply over acceleration to make the ball go farther, swing faster. If that doesn't work, then over accelerate more. All you need is a slower start, more pressure, more precision.
I used to make every effort to cock the left wrist I possibly could and still didnt get er done. Now Im hitting and dont really think about the left hand wrist cock so much and all of sudden the thing is cocking on its own. Golf is one weird sport.
The difference was the old thing about the "flat" vs "geometrically flat" left wrist. The "flat" left wrist does not necessarily mean literally flat. The cocking of a common golf speak strong(ish) left hand grip should see some corresponding cupping (the geometric flat left wrist). I used to take a slightly strong left hand grip, flatten it out by going back under the plane and get almost bowed at top. Trevino style. You just cant cock a wrist that is bowed like that.
The difference for me is knowing what the left wrist should look like as it cocks given the choice of left hand grips. The simplest way to see this is the left hand hammer drill as described by Yoda in the Alignment Golf preview. Holding the club with your left hand only just cock the thing straight up towards the sky like you were hammering something and look at what the back of the left hand looks like. That's what the left wrist should look like as it cocks and uncocks. You'll notice that for stronger grips there is some corresponding cupping. This is "geometrically flat" , a good thing.
So many people think "flat" is literally flat which it isnt, necessarily. Only for those with overly weak left hand grips to begin with.
Dont know whether this applies to you or not, but your post reminded me of my experience with the incorrect notion of what is meant by "flat". The actual answer being; "Well it depends".