[Andy R]

Extensor action is important to solid sweet spot impact if done correctly. Many golfers will apply just the push of the right arm without a slight pull of the left arm and this can change the radius of the left arm. The results are fat shots. Make sure you have opposite pull of the left arm to the pushing right arm to maintain the same radius of the left arm when applying extensor action. Fat shots will be a thing of the past.

Bold by Andy R

I can't remember reading or hearing Mr Kelly say anything about the "opposite pull of the left arm" with regard to Extensor Action. I'd love to hear what he had to say about that, though. Can you let me know where you heard or read that? Thanks in advance.