Splinter - Yes, I can see how the upside-down assembly would benefit from the caul on top. If I attempt that in the future, I'll keep that in mind. I did not get any imprinting from the on the surface from the bag, release layer, or the breather. Luckily.
Ron - 🤣 No need to wait until "next season". Update soon.
Dave - I appreciate the details on your hide glue process. I still have a bag of granules and the little double boiler. Once I've built-up my courage, I'll give it another shot.