Is extensor action at address ok?

[Yoda]

Greenjeans . . .

Could you speak a bit more about the Swinger beginning from Adjusted Address and apply EA during Start Up? Also, how does EA Flatten the Wrist?

I've got a post out there somewhere on this.

Bottom line is that, immediately during Start Up, the Right Thumb and Forefinger simply pulls the Clubshaft into line with the Left Arm (thereby Flattening the Left Wrist). This action can be all the Backstroke necessary for Putts, Chips and short Pitch Shots beginning from a Classic Adjusted Address (Bent Left Wrist).

In longer Strokes, the Extensor Action Takeaway can be executed with enough authority to 'throw' the Club all the way to the Top.