After the paper had been pressed for about 36 hours, I removed the stack of books and lifted off the top board. I wasn’t able to find information about how long the paper should be pressed, so 36 hours is not an official rule or guideline.
I carefully began peeling away the interfacing sheets and clipped them to wire hangers for drying. You can see that the paper is thicker in the center due to the sagging of the netting that I used to make the mold. I definitely recommend using wire mesh rather than fabric tulle for that reason.
I’ll post a photo of the dry paper tomorrow.