I have read that article, in the final conclusion it just falls down to preference, monopole or dipole speakers for the sides or rear, the average concensus was most movie buffs prefer dipoles and music listeners prefer monopole so the question is which one are you or which one do you prefer most. In my case I use the RS3II on the sides and rears I can really feel the full effect of the movie.
One thing though the quintets will have to keep up with the reference speakers, I know I had them too I tried to match them when I got my RF3II before its just not the same timbre. Give it a shot and hear then decide whats best for you.
Stay cool!!!