@Squod: You can find the details In GM John Nunn's Secrets of Minor Piece Endings.
Thanks. I was wondering where that kind of information is published: article, book, online, or whatever. It's a book I'd like to see, but I doubt it has enough practical use for me now to purchase it. Hopefully some local library has a copy, though I suspect not.
I think the OP would be better off following the simple rule I outlined, and focus on tactics and not hanging material. That matters much more than knowing when to fianchetto.