My room is about about 10wx16l. I have a 7.1 system installed. I understand that it's a little excessive, but am I really taking a lot away? It's just my rear surrounds that aren't set up like how they should be. I have my surround on either side in the eves. My bed hits the back wall. That means that my rear surrounds are in my ceiling, a foot from the back wall. Would you recommend just using a 5.1 setup and ignoring my rear surrounds because they're in my ceiling rather than behind me?