I'm away from my inks at the moment, but my recollection is that the Selenium Shade 1 is what I got for a gloss black when I got a complete set of inks for my 3880. On the IJM site it states that a dMax of up to 2.8 is possible, yet the numbers you have quoted in the last post indicate that the Sel is the weakest of the gloss inks.
Am I missing something? If the Sel is a universal ink, why wouldn't I just buy it and not buy separate matte and gloss shade 1s? I want to buy a new set of inks before the $A goes any further South so I'm really interested in resolving this.