Emulsions dont saturate into FB papers anymore. Papers have a Byrita<sp> layer now. It's is suposed to give acentuated highlights and keep the emulsion from saturating into the base paper once upon a time known as salt papers. Papers had an amazing depth. The drawback 30 years ago was we has crappy film unless you used Panatomic X.
The Byrita layer, to me seems to be a gimick, a way to make papers cheaper because since the paper doesn't absorb the emulsion. It actually takes less chemicals to make the paper these days... maybe conservation of expensive silver chemicals perhaps or larger profit margins? BUTTTTT Since the emulsion is on the surface of the paper now it doesn't have the depth my 30 year old prints have. I have re-printed some of my old pix and did side by side comparisons.
It's a shame, today's film has improved so much with the expremely fine grain, yet paper has gotten so crappy.