Has anyone with a screen tried this? I was thinking of setting up not one but two center chanals. One on the bottom of the screen pointing a little upwards and the second one would be on the top shooting a little downwards. My screen is 100" across and takes up most of the wall. I still have some left over space on either side to mount my left and right speakers there at about 4 feet off the floor. Any comments on people that have tried this configuration?