I'd agree with Carl on this one. I use Cranes Kid Finish almost exclusively, and it works well with Pt/Pd, albumen and salted papers and argyrotypes, providing of course you avoid the (sometimes) annoying watermark. I also find that it works better when printed on the BACK side (or felt side - with the watermark backwards) rather than the the front (or screen side - with the watermark legible). When printing on the front, I find I sometimes can see the screen marks running diagonally through the areas of lower value, but I never have anything but a pleasing pattern on the reverse.

Oh yeah...get a Deardorff.