Later this month I'm planning on replacing my Onkyo TXDS 595 with either the TXSR 700 or 800. Both of these receivers are 6.1 so I'm trying to figure out how to add the rear center. I bought a new couch, and based on room design it will need to sit about 8 inches from the rear wall (room is 10' 7" x 10' 7"). My rears sit 2.5' above my head on that wall. I'm considering making a table to fit between the couch and the wall, cutting a hole in the middle of the table a placing a CSi30 in the hole firing up towards the ceiling. The grill of the speaker would be flush with the top of the table. What I'm wonder is if this placement would work or would the rear sond stage not work properly unless all the speakers where at the same level? Where are you 6.1 people placing your rear center if you have a small room? Is 6.1 even worth messing with based on my room size?