I have the Primus 362 floorstanding and the PC360 center channel. But today I am seeing a certain black friday weekend sale that would net a full 7 channel Infinity Classia setup on the cheap. Would it be worth ditching my existing primus setup for them? If so what would I use as the side and backside? C205 or C255? No chance to audition since I am in Iraq right now... Plan on upgrading receivers when I get back anyways.