I plan to run a center rear sooner than later and I need to find out some info. My speaker setup is Paradigm 9se mk2 fronts Wharfdale Modus center Wharfdale Diamond 8.1 rears So for the center rear, do you usually use a front center, or a spare surround? Do you place it on the same line as the surrounds, or farther back. Since I will have to mount mine to a ceiling that is 45" from my ear level, I gather that angling the speaker would be the plan. Besides that, any other info would be great! Thanks everyone, Scott.