Curmudgeon, during that same mid '70s time frame, who was the fellow who started wearing very tight Totes on his feet rather than conventional climbing shoes on Kansas City so as to better use his feet?
Ricky, I don't know who that was.
The strangest shoes I recall from the 70's were worn by the Russian speed climbing team who visited the Gunks. They had weird stitched up homemade climbing shoes made from innertube thickness rubber.
For Kansas City I used the one bare foot, one climbing shoe method!