Not crazy about I know a guy who knows a guy anecdotes but I know a guy that went to high school with Steve Jones, 8 tour wins including a major. He's not just a guy he's my office assistant's hubby. They still hook up for a round here and there when Steve is around and have since they were HS buddies. He said SJ's score were/are always under par but vary.
I'm with @Fourputt on this one. I see no prohibition and as for 1-4 I believe it IS covered by the Rules making 1-4 inapplicable. Even if we were to stretch the point to apply 1-4 i.e. to do what is fair, I can't see where it would be unfair to allow the player to stand on a tee marker.