Digital BW, The Print

I've just received a Ultra-tone kit that contains Eboni black.  I had gotten the kit with the intention of attempting to print on luster or semi-gloss paper.  When I ordered the kit I ordered a CFS and asked MIS to replace the color inks with Ultra-Tones.   Did I get the wrong black?  What papers are Ultra-tone users having the best luck with?

Regards,

David

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