Digital BW, The Print

I'd have to say though that 2200/K2 inks on Silver Rag aren't that 
great... in comparison to using the K3 inks

I started off with my old 2200 - and while the K2 inks on Silver Rag 
were indeed quite an improvement over other glossy/semi-gloss papers, 
there was still some bronzing and noticeable differential, even after 
spraying. The improvement was maybe 50-60% over existing papers.

BUT when I started using K3 inks in a 2400 the difference/improvement 
was dramatic - absolutely no bronzing, and using ABW and/or QTR, 
almost no discernable metamerism (no more than on a real silver 
print) and as close to a true neutral print as I have ever got on an 
inkjet.

(and you don' need to run just BO to get a nice print though - works 
well with QTR)