Stan's thingie is a variant of what is usually referred to as a "bead blocker".
Not a new concept smile

Gilbert's Two Eyed Sight in Greener's The Gun and Its Development, 1888
https://books.google.com/books?id=LAsAAAAAQAAJ&pg=PA531&lpg



More than anyone likely wants regarding dominance and dominance shifting

Dominance Switching Poll with review of the science
https://www.trapshooters.com/threads/dominance-switching-shifting-poll.778281/

Poll: Corrective measures that have resolved my dominance issues
https://www.trapshooters.com/threads/pol...-issues.778369/

"The Peculiarities of Vision"
https://www.trapshooters.com/threads/the-peculiarities-of-vision.793021/

Finding the “Master Eye”
https://www.trapshooters.com/threads/finding-the-master-eye.852691/



https://sites.google.com/a/damascusknowledge.com/www/home