Digital BW, The Print

Has any one used either Epson Velvet Fine Art Paper or Somerset Velvet for
Epson with the Ultrachrome inks?  I'm particularly interested in dmax
numbers for the matte black.  While you would think they would be the same
paper  (one for small sheets, and one for large sheets and rolls), their
specs on the epson web site (below) are different, leading me to wonder if
they have the same coating. As far as I can tell this paper is the only hope
for a matte fine art paper that performs as well as EAM with the
Ultrachromes.

Robert

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Epson Velvet Fine Art Paper
Basis Weight: 260g/m2
Thickness: 19 ml
ISO Brightness: 94%
Opacity: 96%
Base Material: 100% Cotton Rag
Surface Finish: Velvet

Somerset® Velvet for Epson
Basis Weight: 255 g/m2 (roll)
Thickness: 19 mil (roll)
ISO Brightness: 96%
Opacity 94.5% (roll)
Base Material: 100% Cotton Rag
Surface Finish: Velvet