Once upon a time the emulsions were made to last using proven formulas that have been around since the 1800s. Now we are using newer emulsions that have no track record at all nor is there any data to prove the new emulsions will last at all regadless of the base it is on. Did anyone ever find out just how much silver was in the old papers compared to the new emulsions?

BTW the emulsion does not sit on the FB, it is seperated by a layer of Byrata just as the RC seperates the base from the emulsion. The old "salt" papers of yesteryear are the FB papers you may be comparing to , some of these are the papers I once used from Agfa that are no longer available. Todays papers are very nice but I think they look shallow compared to my old prints.