Andy - glad you setup a forum. I think this will be a really great tool for the club. As for the diving question, I don't know. We are also certified divers but have not been diving north of Catalina Island yet (AVX). My wife flew with a friend to Shelter Cove and posted her photos of the trip online. They took a DA20-C1 -
http://www.flickr.com/photos/meagancantrell. I hear its an awesome trip!