After reflecting on this a bit...
I would like to restate that, as I began this effort (for *my* "perfect" screen), I wanted something that was rather inexpensive, easy to install, and provided performance relatively close to a professionally manufactured screen.
My search (which could not and would not have begun had it not been for this website and the expert help of Prof, mech, and wbasset) led me to DW and FG. For my setup (IN72 throwing a ~110" image, controlled lighting), neither option looked as good as I'd imagined (seeing a similar setup at my brother-in-law's using BOC).
The search was on! I noticed that Wilsonart produces a decent variety of "grey." None of these appeared to work for my setup. Too dark and too "darker." Then one day I saw Chargrey Suede--a white and grey mottled pattern that looked pretty light when you stepped back a bit. That same day I found the "sparkly" Pearl Silver LS (gloss). Damn, the sparkly Pearl Silver wouldn't work (too shiny) but the CgS was VERY impressive--producing a far better image than I had expected and performing far better than either FG or DW in either ambient lighting or complete darkness.
After ordering and installing my CgS screen, I believe someone here suggested looking for the Pearl Silver in a different finish. I called Wilsonart and discovered that the most matte surface for which they produce Pearl Silver is Crystal. I ordered a sample and, in reproducing all viewing types and scenarios, I believe were I to do my project over, I'd order and install Pearl Silver, Crystal (PS90). edit:
The reason: PS90's finish provides a certain level of POP that I do not believe I could achieve without overcoating my CgS (or DW or FG) with some fancy, labor-intensive material.
This is my opinion, but I feel somewhat justified in this opinion--it is what my eyes (and my family's eyes) tell me--for our setup.
One may use flashes or strobes to achieve a perceived potential to hotspot--this, in my opinion, merely reflects a maximum potential under extreme conditions rather than average performance under normal conditions
I'd like to see, and am excited to see, a full screen in PS90. But as I have limited funds and time (graduate student) I am more than satisfied with my CgS screen. Oh--my parents visited and wanted to know how much the screen was (expecting thousands). When I went up and hit the screen they were shocked to find out it was a laminate. They both agreed that the image was outstanding.
Now I am predicating this on the fact that I am not an audio- or video-phile. I am merely an average guy looking for the most from his money--especially concerning home theater.
If it interests anybody, I set up a few samples on my flatbed scanner (which in and of itself may be a prime example of a maximum potential under extreme conditions) but may provide some discussion of color/shade/luminosity.