I had been projecting my Electrohome 8500 (8" CRT) on a painted white wall. Our dedicated theater room is ready for the screen. I splurged. I know many hear recommend the 1.3, but I took the advice of the vendor using Stewart's software, and got the Videomatte 200 (1.8 gain). The size is 54x96, and since all my speakers will be behind the screen, I got Miscroperf.
Here's the problem. I can see almost no difference between the wall and the expensive screen I just bought. I'm a reasonably critical viewer. I'm sure I had unrealistic expectations about the screen improving my image somehow, but I definitely expected an increase in brightness. I put the screen up against the wall so that the viewing area was divided approximately in half horizontally. Top half of the image is wall, bottom half is screen. I also put a dark sheet behind the screen to eliminate any possible reflections due to Microperf.
I can see absolutely no difference in the brightness of the 1.8 gain Videomatte microperf screen and the white painted wall.
The screen is clearly marked as being Videomatte 200, but how can I tell for sure? Shouldn't I see a significant difference?