Man, I have been listening to my Happy Mondays ad nasuem from the Green Stage at Fuji Rock and I have noticed a kind of grating compression/saturation in the mid-high vocals. The sound was great at the show but upon much closer inspection on the recording, it seems to be present - I do not think this distortion is being caused by the Lemosax or the modSBM. The Line Array that was used was comprised mainly of horns, nothing I have seen used before in the US. I noticed a bit of it on my Kula Shaker as well which used some of those same horns in the Red Marquee Stage. The reason I say mk4v specific is that on my Wolfmother, running mk21s, the compression is not present (and I was much closer, tho running at shoulder height rather in the Kangol).
here is a pic of the White Stage running the same horns (the hanging silver ones on top, the Green stage had them set up in a line array):

Anybody have an idea of what I am talking about? I know the mk4v has a peak to accentuate the vocals, but this is beyond that....in terms of the clarity giving rise to overdriven and over-saturated sound.