Digital BW, The Print

I'm looking at Canson Rag Photographique 310 gsm, in combination with
Cone K7 Neutral inks on an R2400 printer.  Although the paper is very
white, Canson states there are no OBAs added.  They also make a strong
archival claim.
For profiles, I used both the Han Photo Rag and Han Photo Rag Bright
White; they appear to produce essentially identical results.  Printing
Jon Cone's Piezography test pattern appears to produce smooth gradation
throughout the lightness spectrum, especially at the dark end, from 90
to 100%.  This is a subjective evaluation since I don't have a
densitometer.
So, the question:  Has anyone here had experience with this paper that
they would care to share?
Much appreciated,Harry


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