I remember stepping into an isolation booth at a friends basement studio some years ago, and it had nothing but foam in it. I remember that when I closed the door there was almost like a vaccum-like effect, where you could even hear yourself breathing. I never understood it since foam is supposed to eat up mids n highs and leave you with muddiness. Before the gobos, my room(while an average sized room, is still way larger than that booth I was in) lacked the vaccum like effect, but the clarity in speech and when I was tracking was very similar.
DanDan, what you describe is what Im trying to acheive, that dead that has the clarity. I feel like I had the clarity but needed less open-ness, now I have too much dead and not enough clarity and natural room sound.
What I was REALLY hoping too accomplish, was something I could put on the gobos that would give me highs back at least while tracking. This way if the slats/plastic/whatever had a negative effect when it came to mixing, it would be something I can easily add and remove for when I transition from tracking to mixing.