I think it's quite impressive what most of these "amateurs" can learn in four days. Some are definitely more fluid than others but I'd give them all an "e" for effort.
Thinking about those days. There was DrRon's group The World Challenge Singers, Soulsearcher's group, including The Smith's and Michael (was Mary Sue in it?) and Rick and Debbie Sloan and Larry and ? Linkous had a group. What was their group name? Their big song was "I'm strung out on Jesus, h...