In this case I think the attorney lost, but he had contacted me on the basis
of reading
http://sbarnhill.mvps.org/WordFAQs/BottomLine.htm (I think that's
the one), in which I say that IMO "double" spacing is too spacey for point
sizes above 10 pts, and that Exactly 24 points is the equivalent of double
spacing on a typewriter. If the rules for briefs had been created during the
typewriter era and not updated for the computer age, he might have gotten
away with maintaining that 24 points was effectively "double" spacing, but
in fact the regulations were quite new and specified the font size (no
smaller than 12 points IIRC) and spacing, though they did NOT specify the
font, and I did point out that using a different font could drastically
affect the amount of text in the number of pages specified as the maximum.
I also stated my (totally uncalled-for and unwelcome) opinion that it would
make a lot more sense for the court to specify a word or character limit
rather than a page limit (since both statistics are easily obtained in
today's word processing software). None of this cut any ice with the court,
alas.