Need some advice. Looking at purchasing set of qs4's to complete my 7.1 setup.I currently have a set of Polk rm6500 sattelites, 2 in front, 1 center, and 2 rear surrounds. Am I better off putting the qs4's as rear surrounds, and moving the Polk sattelites to the side surrounds, or using the qs4's as side surrounds and leaving the polk's in the rear? Also any issues with hanging the qs4's on the wall or mounting them from the ceiling, since if I use them as side surrounds, that is what will be necessary since my family room is open on one wall to the kitchen. Pls email to allen.hecht@bankofamerica.com. Also, has anyone purchased "seconds" from the axiom store? If so, what condition are they in?