Is extensor action at address ok?
 

Is it correct to apply extensor action at addresss before the club is taken away?

Oh yes
 

That's the trick. It may feel awkward at first, but after a while you'll do it automatically & never leave home without it.

The "checklist for all shots" section towards the end of the book has Extensor Action all over it. For a reason.

What is Extensor action at address
 

By this do you mean stretching out of the left arm towards the ground.?

Is this what Tom Tomasello describes in the drill on his video (chapter 2 ARMS) when takes the left wrist in the right hand and first stretches it towards the ground?

I think it makes my "power package" more stable when I have extensor action at address. I think I'll make it part of my pre-shot routine

Exactly. If you think of the left arm as a piece of rope; the right hand keeps the "rope" taut using extensor action via PP#1.

To make it less dramatical, extensor action is a general medical/anatomical term - sort of. An extensor muscle is a muscle that has has the purpose to open a joint, increasing the angle between the limbs attached. So extersor muscles are used to straighten fingers and straighten legs. In TGM Extensor Action refers to the (deliberate) action performed to increase the angle between the right forearm and upper arm - thus using extensor muscles.

So where does the resulting force end up?

When Hitting the pressure is applied through PP#1 and down the shaft. When Swinging the pressure is applied through PP#3 and down the shaft. In both cases the effect will be the left arm (the primary lever) being extended to straight.

I am not the right person to list all the benefits of EA, but maybe the most obvious ones are:
- Creating width
- Presetting alignments at Impact Fix and make sure we keep the alignments during the swing.

Again in Homers checklist he wants you to make sure about EA in some 9-10 places during the swing.

If there is no Extensor Action we - for example - need hand-eye coordination and manipulation to hit the ball solidly. But if we apply it at setup - and keep it - we "know" we will hit the ball solidly, since the left arm will want to extend at impact anyway.

A few extensor muscles shown here:

Extensor Action -- Stroke 'Glue'
 

There are 45 items in the Mechanical Checklist for all Strokes (12-3). In all but three Sections of the Stroke -- Preliminary Address, Adjusted Address and the Finish -- Extensor Action is listed as a 'check' item. In other words, Extensor Action is present from Start Up to the end of the Follow Through. Including Impact Fix, that would be nine Sections, or 20 percent of the 45-item Checklist.

[Extensor Action also may be present in Adjusted Address, but it is not listed as a check item. That is because Extensor Action fully-applied would Flatten the Left Wrist. This is acceptable for Hitters using Impact Address (10-9-B) but not for Swingers using Standard Address (10-9-A).]

Bottom line: If you integrate Extensor Action into your Total Motion, you are well on your way to a sound Golf Stroke.

Just when i thought i was getting it the fog descends
 

Hi metallion,

I must admit your post has confused me. I'm a swinger and have been applying extensor action through PP#1, is this wrong? I also don't understand how extensor action could be applied by using PP#3 as it is behind the shaft?

Cheers,

Danny

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?

Thanks!

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Yes but the stretch off pp3/1 is not in any old direction towards the ground - its towards the impact point plane line.