hmm, you may be on to something here, Ron. From the replies here I have already decided to punt the perforated screen. I will just go back to the old screen and use it only in 16:9 format (even though that means a smaller 4:3 picture when watch ing TV), which enables me to raise the screen enough to expose the center channel (my Barco is on the floor).
I agree that center channel can be unsatisfactory but that usually has to do with its being mismatched with the main speakers, and/or located much differently than the main. My center channel is specifically matched to its mates (all Paradigm, as are the sides), and is at the same distance from the listening area, but putting it below them (my only option at present) distorts music. I can use the software in my Lexicon DC-2 to compensate for many things, but not a height difference. Lexicon seems pretty firm that a center channel is necessary for Dolby Digital, THX, etc., but not at all for music. I will fool with a phantom center for film and see what I get. In the extreme it is not too hard to turn off the center for music and on for film, but I hate adding any button pushes to my viewing or listening.