Bob, that might be what i've got going on, although this question was really academic at the time I posted it...I was reading the word fatigue used here and had no idea what part of the spectrum it came from, if everybody was talking about the same thing, or what it was. I'm less than a year into this. The consensus I'm gleaning is that it's a HF phenomena, some kind of shrillness. I can certainly see how that that kind of energy would be made much worse in a bright reflective room for sure.
bridging these two posts, guess my question would be...can a non-fatiguing system be deployed in a brighter-than-ideal room and have it remain not-fatiguing?