Hope this is the reply space... When I do sound for kirtans I am doing the live sound and recording too. The guy I work for, Jai Uttal, is partly deaf (as are a lot of them, like Krishnadas) so needs monitors REALLY REALLY LOUD! So my worst problem is the monitor sound leaking everywhere.
It is hard to capture the singalongs without the PA. For intended album recordings, you need the audience cooperation, and the performer's, to keep the PA down to a very soft level. And I put the audience mics close to the main speakers, but pointed away from them, so that the speaker sound is not delayed in time, and might be able to reverse phase on the PA feed and get it to cancel out some. But it is never perfect. To get a great live recording you need to stage it with the cooperation of all. And mic the audience from far enough away to get the group sound, and have them all agree to not chit chat.
Sorry, I saw couple of threads where you're talking about kirtan recordings.
At the moment I'm doing a research on that topic.
The biggest issue I came across with is eliminating the PA in the mix.
Usually I close mic everyone and use SPS 200 for the audience, but sometimes when the room is not big enough or because chanting becomes so ecstatic, that people start to stand up and dance I put the mic right at the border between the audience and kirtanyers. Thus I get tremendous amounts of speaker spill. At the same time when I place the mic closer to the middle of the crowd, first of all the whole evening I'm just staring at it, and also I noticed that people tend to chat there a lot, so I'm recording a talk show. Can you share some thoughts on this? Any demos will be much appreciated.