...maybe there are some secrets?
When I record "gang" vocals I have stuck 5 people at a time around a KSM27 in a live room. I then recorded 5 takes of 5 people. Work pretty good. You just have to make sure everyone hits it dead on.
"Gate the gang", triggered by one person, the one that sings best. This is a known livetrick for backing choirs. You need a seperate mic on the "lead" backing singer to do this.
hey thanks
so the main idea is not to record single voices
but record multiple! and then layer them some more times