Originally Posted by DavidK442
Obviously I'm not Chris, but I have compared my Spandex screen directly to a sample of Centerstage XD and can probably answer your question.
Other than being noticably brighter one other benefit of the XD material that quite surprised me was how much sharper image detail appeared to be.
I have tried spandex in every configuration possible (Silver over white, white over silver, white over white) and in every situation the spandex gives a slight halo effect around each pixel. Essentially when hit by a beam of light, the spandex "glows" in a larger area than that hit directly. The XD in comparison maintains greater localized contrast.
In my particular situation a little fuzziness around the edges is a good thing because I have a viewing angle greater than 50 degrees with a 720p projector. The spandex makes visible pixel structure bearable. Also I sit quite close to the screen (about 9 feet) which may allow the XD weave to be seen at times.
In my mind the Centerstage material is well worth the price difference if it works in your particular install.
Spandex is cheap and XD samples are free. I encourage you to try for yourself.
Thank you for sharing your experience. I have settled with CS XD and am happy with the results. I tried spandex, though my tests were not nearly as extensive as yours. I only used a single layer of silver moleskin.
The main reason I ruled spandex out is dimness. I simply could not get the picture bright enough and still maintain decent quality. But I also noticed that the picture is a little bit washed out , not as sharp compared to what I was used to with Visual Apex white screen. At the time I tested it, the screen was still wall mounted and there was 1/2 inch gap between the spandex and the wall. Even though the wall is painted dark brown, there was some reflection light thrown back on the screen. So this is what I attributed the wash out effect to. But after reading your and Chris' posts about the cross-pixel light contamination, i think that is the real reason. And doing multiple layers would probably make the effect more pronounced.