I think the rc emulsion is based on multigrade , and the fibre is based on galerie G4 with an extended red sensitivity.
Harmon would be the go to people as far as exactly what emulsion is what.

Quote Originally Posted by frotog View Post
Hear, hear, Bob! But what's news is that both versions of this paper (same emulsion as far as I can tell) work for an application for which it was not designed, exceedingly well I might add. Not at all surprising either as the discrepancy between the nature of the beast and what comes out of the horse's mouth often comes down to marketing.