I agree MB has a great deal of knowledge keeping bees but he is not the only knowledgeable beekeeper out there.
It seems to make sense that they would quote the Lusbys since it appears they were one of the first pioneers in small cell.
"Lusby and her late husband, Ed, also developed over a period of time a smaller cell comb diameter that produced healthier hives, a reduction in the number of mites and diseases and optimum honey production."
Here is a site with links to articles from or about the Lusbys regarding beekeeping.
http://mysite.verizon.net/vzeod3nx/id5.html#section1