PD, Where is the laser? End of grip or pp3,the index finger?

If the laser is on the third pressure point, than you still will be tracing the straight plane line. The path of the hands (straight) is not the path of the clubhead (orbit).

A swivel will take the clubhead up and to the inside but the pp3 laser is still on the plane line- this is always where the laser on the grip would pick up the plane line. Homer said to use the pp3 index finger like a flashlight and trace with it.

so is the laser the same as the flashlight? laser is in butt of club and on shaft towards sweetspot. So if flashlight is rightforearm-pp3, what am i looking for? this is gettting deep...lol

yes, both hand held.

Lets stay simple here. Most lasers are in the grip (Harmon’s has a grip and a shaft laser light- I never used one- bad idea since the clubhead doesn't travel that path- this is a hand path). The grip end laser only works after take-away when the clubhead goes up and the grip end faces the plane line and as the grip is pulled down on the down stroke. (The plane line-just in case- is the straight line on the ground that attaches to the incline plane like a gutter to a roof). If you use a hand held flashlight (or small laser beam), you can now point to the plane light at address, trace it on the take-away and re-trace it on the down stroke. And this is the same arm movement you feel during the stroke.

When it is held in the hand- it is pp#3 you are pointing and the right forearm you feel moving on plane. Get a small mag lite and drive you loved ones crazy.

6b thanks, that is how i see it, but so far, Ed seems to be saying that extensor action does not comply with the same gutter...ED, to mikes gutter, how does your extensor action gutter look like?

Extensor action is a 'below plane' motion relative to the sweetspot, hence it is 'inside and parallel to' what Mike is describing.

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Very nice, Ed!