Originally Posted by Ian Grant
As films & processing changed so did the papers.
So using older formulae for enlarging won't really be beneficial. The reverse of the problem is it's very hard to achieve the same qualities from 20's, 30's, 40's negs with modern papers.
(note: emphasis added to the quoted text)
Ah, yes. That makes perfect sense. Hadn't thought of it that way. It explains much really. Thanks.