For any process where you wish to coat and expose the same piece of
paper multiple times, what do people do with the severely uneven paper
between exposures? I have preshrunk it and dried and ironed it before
doing anything to it. But, once it is (perhaps sized depending on the
process), coated, exposed, washed, and dried, it reverts to hills and
valleys. And yes the contact frame flattens out everything, and the
large objects in the image appear nicely, but registration problems
ensue in finely detailed areas. I need help!