My goodness William. My post was clearly about the extended forward arm, and ed's claim. It had nothing to do with you.
Did you miss this? "posture/mount/hand position is best left to what works."

And I believe using pictures helps us understand. You'll note that "Blue Rock" and Athol's forward hand positions are the same, with the barrels in the palm. You can see in Athol's pic that requires significant supination (external rotation) of the wrist.

This is Robert Churchill, who was a short, stocky guy, with short arms; but his forward hand is also supinated

[Linked Image from photos.smugmug.com]

Fred Gilbert, one of the best American Live Bird and Inanimate Target shooters, with the same hand position. He is wearing a glove to protect his hand but later used a hand guard.

[Linked Image from photos.smugmug.com]

Jack Fanning was a stocky guy with short arms and he appears to have the FE resting in his palm

[Linked Image from photos.smugmug.com]