"People might say the steering involved will provide better imaging since center sound source will be produced by one speaker, but we are not talking about EX source where rear center is dead center."

Right Lwang! I'm not dealing with play back of sources with a flag for the rear center channel, as first of all I don't want a set up that does see a rear center channel flag but forces me to have mono rear surrounds and move the true rear surrounds to the side speakers-if that is what a Meridian EX does-I don't want that! Do you think the way Trifield works to take a stereo signal and create 3 channels, is there any risk of this not matching the rear surround action on the video playback?