I will be recording an acappella group later this week, in a church building (medium size, but not too bad as far as bright echoes). There will be about 16 singers, 4 or so per section (soprano, alto, tenor, bass). I'm planning to have them stand in a rough semicircle in 4 separate groups, maybe 5 feet apart, maybe less. I'm following a basic 3:1 rule as far as spacing between the groups and their mics. Each group will have two mics directly in front of it (may only use one of those tracks, but will have a choice), and then an A-B stacked OMNI pair and/or maybe an ORTF pair for the larger picture. I will be recording with NUENDO, MOTU 2408, Presonus Digimax, ART Pro MPA and Aphex Tubessence Preamps. One note on headphones for monitoring - I plan to take one analog out from each section from the digimax and feed a small headphone mixer. The headphone mixer will have a small reverb unit in an effect loop (if needed). For overdubs, I plan to send L/R playback from Nuendo to the headphone mixer as well. This way I don't have to use direct monitoring in NUENDO (avoid those latency issues). Any advice or suggestions ?