I've had my Reference-3 7.1 surround for about a 2 weeks now. I love them, but was wondering is my rear surround speakers are wrong. I bought the 7.1 Packaged deal from Tweeter's that comes with: Denon 3802, pair rf-3II,rc-3II, and 2 Pair of rs-3II. Should the surround back also be rs-3 our should they be another rc-3? I undestand having the RS-3 for Surround L/R because the are 180 degrees field, but should the surround back be? And how much of a difference will it make? Thanks for the info.