Will....Your post raises a whole other issue. What is a choral sound? Mr. Shaw always felt a chorus should communicate as one voice.
The hyper detailed recordings popular with a lot of Audiophiles by people like John Elliot Gardner are anything but choral singing. Instead of one voice, Mr Gardner gives us 60+ individual voices singing the same thing at the same time. Mr. Gardner even calls his main group the "English Barogue Soloists"; ie, a large group of individual soloists; not a chorus.