Pat,
Of those photos above, only the second is what I would call a rounded rectangle. I say that because I could create it in CAD with my "Rounded Rectangle" Tool, by setting the radius settings to "symmetrical" and setting the raidus of the curve to 1/2 of rectangle width. (Its more common to set the rounded corners to minimum turning radius of the tee mower, typically 8-10 foot radius)
All the others would fit my definition of rounded, but I think of free form more as the Larry Packard Tees at Innisbrook with really exaggerated shapes, not just rounded corners and some wobble in the edge.
There is also such a thing, IMHO, as a "squarish" tee, with square corners but polygon shape, like a wedge shape, or one side square and one side angled.
Obviously, I have thought about these definitions, even wrote an old article about possible tee shapes...but overall, its probably not thumping chests over a definition of tee shape.
I am guessing when you mention my track record of being wrong, you refer to Merion again, but I'm still waiting for you to provide those phone records of all those CBM calls to Hugh Wilson you allege to have burned up the phone lines.........LOL. My biggest mistake here (like many folks) involve endless back and forth with you on subjects where you just won't admit you are wrong, even when you clearly are!