Hey man,
Not to crap in the punch bowl, but I have the same exact problems with the same exact speakers.
I don't think you are can have your cake and eat it too unless you have a big room with ideal conditions.
I also have a projection screen in the middle of the speakers, with the same viewing problems as you do.
You can move them left, right, up, down, out, around, its not going to make a difference. You are always going to fix one problem, and create another.
I have been contemplating a different speaker for sometime now. The problem is, what else do you get for anything under 15K that can hang with these speakers with all the things they do right?
The problem is room size and positioning.
They need to be positioned properly, in a room big enough for their awesomeness. I feel like right now we are listening to a compromised version of the speaker.
I say F it, be happy, and try to find the best compromise or else you will end up hating what you have.
If you end up finding a solution, I am all freakin ears though man.