Thanks. I printed off a copy of a protractor since I dont have one, and could use a laser to center 90 degrees on the center and tape it down on the table to help with angles for the fronts. Equilateral triangle makes it easier! Im not sure if I can get 10.5 feet apart, but I think I can get 9 maybe a little more so that should be good.
I read the horns are fairly directional so toeing in was a good idea, just wanted to get some input.
I think about about 7" off the wall now, but I can eek some more out of it.