Digital BW, The Print

I don't usually print B&W on glossy papers, but I recently had a 
request for some glossy B&W prints so I tried the Pictorico high gloss 
white film in my 2200 using the full Ultrachrome ink set with the Photo 
Black.  I was pleasantly surprised by the print quality and intense 
blacks.  I used the free profile and recommended workflow available at 
the Pictorico web site which produced excellent neutrality in my 
greyscale prints.  There was also dramatically less metamerism and 
bronzing compared to Epson's glossy papers.  The latter improvements 
may be due to the higher quality of the Pictorico profile and/or the 
wicking of the inks down into the ceramic coating of the PGHG.  
Visually, the blacks seemed much more intense compared to the matte 
black on EAM.  Does anyone have a dmax measurement for the Photo Black 
on PGHG?