I've looked at that page a good bit. The problem with those comparisons is that it looks like the projector was adjusted -- white and black levels, etc. -- for the author's existing screen, a Da-Lite Matte White. Of course, most of the rest of the screen specimens looked worse, and the ones that reflect the most light look 'blown out' because the projector is adjusted for satisfactory white level on a screen of much lower reflective characteristics.
But you can't tell what they would look like if the projecter were adjusted to their reflective characteristics. <sigh> Maybe they'd look better?
A poster on www.thebigpicturedvd.com
who has a Da-Lite Matte White screen himself, and has seen Bill Cushman's setup which uses the Da-Lite High Power material, claims that Cushman is right, that this material really does provide a major jump in picture quality, with reduced light scatter.
Very difficult to know without a formal test of multiple full-size screens, with projectors re-calibrated to each screen in turn.
Does anyone know if this has been done?
A rainbow rat...a checkered cat