I'm sure CS made some great shoes, but I had a pair that was almost certainly corrected grain and iirc it had cloth lining and a fiberboard insole.
Interesting observation, friend. I actually discussed these shoes, and vintage in general, with my cobbler this afternoon in lieu of lunch.
He got into the business in 1934, then took over his store in 1940. He said the thing he always noticed was that everything was done by hand (at the top level). The leather was VERY nice (he said many in his industry believe that, as methods of cattl feeding changed (from grass to other grains, nutrients, then finally chemicals), the leather quality declined. He said they observed that as the cattle were fed with the purpose of getting the most "meat for your dollar", the hides became different and "softer". They were thinner, less durable, and were more easily damaged.