I see by some of the responses (hi, Wolfy) that I should have let my nit-picky chew on the descriptions a bit more. By "Modern", I really meant "within the standards of good
ebooks", meaning sensible margins, indents, etc. I agree that most print books, including vintage scans, *have* large margins, deep indents, dozens of blank pages to force chapter starts on the recto (right-hand) page, and other detritus no longer used in well-done digital format.
Mostly the Modern choice was *intended* to put emphasis on modern punctuation and (sometimes) grammar/spelling. As opposed to treating antique punctuation and spelling as something graven in stone, which MUST be preserved in the new electronic production. I have seen too many changes to such in second and third editions of 19th-century books to believe in the "sacredness" of the typesetter's choices in the first edition.
Does this make anyone wish to change their mind and cast their vote for Modern?