Hi Migo,
You seem to be a wizard with English grammar. Can I call upon you to look at the question that orginally brought me to this forum?
My introductory post with its topic is at the following link [url="
http://www.EnglishForward.com/ShowPost.aspx?PostID=35424"]Complex sentences, restrictive clauses, and comma usage[/url].
It is now a long thread, but a couple of key posts, I believe, are as follows:
A) [url="
http://www.EnglishForward.com/AddPost.aspx?PostID=35763"]here[/url] (references a posting in a newsgroup where various people provided their answers), and
B) a key post by taiwandave [url="
http://www.EnglishForward.com/AddPost.aspx?PostID=35799"]here[/url].
taiwandave's post summarize's The Economist's Style Guide. I am curious if you would have anything to add.
You can certainly read the entire thread, if you wish, but, if you want the abbreviated version, then you can just review the highlighted posts.
I look forward to your response.