I you wanted to hear something specific during the evening band session, you should have just jumped in, I thought that by making it informal and letting everyone at everything we would have a good time just "fiddling around" instead of actually "testing." My apologies if 15 people mixing while 5 people kept swapping things did not come across correctly.
FWIW, the idea of switching the vocal mics regularly was not to find which was the best mic, but to find out which mic worked for that singer WITH NO EQ, only a swept HPF. In this case, the fairly universal answer was the OM7 (not 5). If someone handed her a BehrinSamso GTRCTR1 and it sounded great than we would have stopped there as we did with the OM. It was the same with the guitar and overhead mics, we moved and or switched those quite a bit as well, trying to find the placement and mic combo that gave us an UN-EQ'd sound that made the source fit into the mix.
Mic selection, technique, and placement has already been nominated for one of the sessions next year, but again the focus will NOT be "which mic is the best" but "what works best in this situation."
Yes, the sound was "honky" with the M80, but that do not mean that the mains were. It only meant that the M80 does not work with her voice.