I remember an old teaching pro from 'LoneGuyLand' who used to frequent FGI by the moniker of Gwog. He always used to say that his wedges were his bread-n-butter. Having enjoyed numerous rounds with him over those years he was active on the forum, I could personally attest to his proficiency with a wedge in his hands. One day while we were waiting to tee off, I fetched one of his old wedges out of his bag and gave it a thorough inspection. Wow. There was a worn spot about the size of a nickel smack in the middle of the face, starting at about 2 or 3 scorelines up from the bottom of the face. It looked like someone had taken a dremel and neatly patterned the circumference of a ball in the sweet spot. Amused, I picked up his other wedge and looked it over as well. The faces looked identical.
He always used to tell me that there were three clubs he would never part with. His trusty old Titleist putter, and those two trusty old wedges.
Knowing Nick as well as I did all those years, he'd read that graph and shake his head. And then he'd say something along the lines of, "It's just further proof that we've gotten away from teaching players how to hit the ball to certain distances with less-lofted clubs and learning how to manufacture shots."
Can't say that I'd disagree with him.