I wonder why it would necessarily have anything to do with the PGA Tour though.
This person who asked is apparently interested ion when showed up on Tour.
His question prompted me to wonder about it in a more global manner.
I have talked to a former superintendent who works here, and he doesn't remember it being an old concept.
I wonder if it's been around longer on links courses where there was a shortish cut in front of the really tall stuff.
Ken