No, I've only done this one. The others came out mostly before I fled Usenet for here, and I didn't read HPatHBP for a couple weeks after it came out, by which time it seemed sorta pointless. That, and I can really only do this when I'm in the right mood, which is unfortunately not all the time, or I'd write books and like large like JK.
Re: Harry Potter and the Deathly Spoilers
I'm glad you enjoyed it.