I'm very grateful for this thread as laminate has turned out to be a great idea for a screen. Ever since I left my old house, I've been wanting to get into front projection again. Now that I have that opportunity, I have to be somewhat economical in order to pass the WAF. I initially went with the Designer White for my 88" screen. Since I have a small room, that is about all that would fit.
But for my Epson 5020ube, it was just too bright. I couldn't knock down the brightness enough even in eco / cinema mode. However, it was just about perfect for 3d which was bright and beautiful. But for 2D viewing with such a small screen and a light canon, I found the Dove Grey color to perfect. It knocked down the brightness, no dingy whites, and the contrast is fantastic. One of the problems with the designer white was that the colors appeared washed out because they were so bright. With Dove Grey, the colors now are well saturated and deep, like they should be. I would think that with a much larger screen size, Platinum would be a better choice (which I also looked at and was halfway in between) because Dove Grey would probably to too dark. That said, the performance of the Dove Grey screen gave me better contrast and deeper blacks than my old DaLite HCCV screen. I have found no hot spotting problems with the Dove Grey and only a slight bit with the Platinum.
So here's what I did, in case this helps anyone else. I made a frame from 80/20 aluminum quick frame with 2 vertical supports. I then affixed one sheet of WilsonArt designer white on front side and one sheet of WilsonArt of dove grey on the reverse using 3M outdoor double sided tape. I then added a couple of loops to the top of the frame using some cheap drawer handles. This would allow the double sided frame to be hung from two flat hangers mounted to the wall. The design allows me to reverse the screen depending on whether I'm watching 2D or 3D. I spent $85 shipped on 80/20 aluminum quick frame from their Ebay store, $30 on two rolls of 3m double sided tape (the 440 inch rolls), $21 on 75' of 2" wide sticky backed black felt trim from Amazon, and two 4'x8' sheets of laminate from the Atlanta WilsonArt factory store ($25ea for DW and DG, Platinum was $75, btw). So for about $200, I have two screens that work perfectly for a small screen (88"), small room (11.5'x13.5') home theater with an ambient light problem that can easily be switched around using a very simple mounting method.
Oh, and I got a $27 laminate trim router and a $10 laminate bit from Harbor Freight. Not the greatest quality tools, but for something light duty like this, it was the easiest and fastest way to trim the laminate to fit the frame.