Digital BW, The Print

I'm sending some sheets of paper off to a couple of dealers to see if 
they can source it. It's a semigloss paper that looks very much like 
a typical offset stock, but it does have OBA. The closest description 
comes from the Adorama double sided semigloss, but I've been told 
that paper doesn't work very well with pigment inks, something about 
the clay coating.

For a matte paper, something like a double sided Hahnemuhle Artproof 
would be kind of nice, or maybe a really thin Innova Photo Fiba Print.