The slice I hung over my finger was about the thickness of a pencil. And when I draped it over my finger it broke into two pieces. I can't recall if that was under its own weight or if I pushed on it slightly, but it was extremely dry.
For probing I used one of these: https://www.amazon.com/TONGYE-...tering/dp/B07BGWZLHF
Maybe that's way too thick?