I do remember what Kretchmer eventually said. He said, “Maybe one reader in ten thousand would get that.”Sprezzatura is a term of art in what are sometimes called "Historical European Martial Arts," or sometimes "Martial Arts of Renaissance Europe." That's because -- as the article points out -- it turns up in Castiglione’s “The Courtier" from 1528.
I said, “Look: you have bought thirteen thousand words about Wimbledon with no other complaint. I beg you to keep it as it is for that one reader.”
He said, “Sold!"
It's a wider ethic, though. The guy who first taught me to ride motorcycles put it this way: "Do you want to know what the Holy Grail is for motorcycle riding?" he asked. "It's to be smooth. Everything, smooth."