Thanks for the update on that. As a handcolorist I've tried lots of artists papers and inkjet papers for the oils, so I know how meticulous and painstaking the process can be. Bergger is one of THE most expensive in inkjet papers, btw, but it's beautifully made stuff.
Paper curling also depends of how you dry it. I've noticed that my 12x16" FB prints don't curl that much if I let them dry on a screen and remove the excess of water after the washing. Then a couple of days under a few heavy books and they're just fine.
I know your question is directed at Orie, but since I don't have a regular screen, after I squeegee my prints I use cheesecloth. My FB papers always curl, so I have to use the heavy book treatment, too!