Scott-
You must be having a bad day!

Everyone else knows that if your stand is too high, it will not sound good...even in the sweet spot!
I love the sweet spot as much as the next person, but systems that WSP and SCI have are line-array systems which is supposed to sound good everywhere in the room. Believe me, I know that there are sections that sound better than others..ie the soundboard and taperssection. I am not blanketing a statement, I know what i am talking about and i think that when reading this post, you are the only one who disagrees with the fact that if you are too high up, it doesn;t sound as good!
I'll send you my vegas tapes and cheese fromthe fillmore that were at 7 ft and let me know how they sound....oh yeah, do FOBers run at 6ft b/c it sounds better at "head height" or b/c they are worried of being caught? Im gonna guess both!
Equalizing the sound throughout the room also means make it sound good where people's heads are.
So if your stand falls within the 7-9 ft height why argue with my "theory"?
Phil
email me if you would like to chat more b/c i dont think people want to read this anymore