Absolutely agree–old airplanes DO fly differently than produced today. Robert Gilruth from NACA was the author of setting standards of how airplanes should handle–and that didn’t happen until 1937. I’ve flown more than 330 unique types of airplanes (depending on how you count them)–including many antiques–and later airplanes that had their original type certificates issued before that date. His work helped to eliminate surprises when pilots transitioned from one aircraft to another.
This is a companion discussion topic for the original entry at https://www.avweb.com/features/reader-mail/top-letters-and-comments-august-7-2020