I tried to expose the shot as well as possible without clipping the whites nor shadows, but the projector and screen are probably doing a better job than I was (the camera and I are more to blame than anything else for detail being lost).Happy to help !
That sunlight is just murder. I suspect in anything less extreme the screen does not lose the details in the folds of her white outfit or the details of the various textures in her black tactical outfit ? I realize it is kind of amazing to even have an image in that kind of lighting, but come on ...
I just sprayed a little panel of pearl+sterling+gunmetal (4ml each along with 12ml poly and 12ml water) to check how the gain and color landed. It turned out a little darker-colored than I was figuring, right around the shade of carlsALR with gain that's just a little higher..roughly 1.1-1.2gain I'd guess. The picture's clean-ness and off-axis brightness also gets even better with the lighter-colored mixes like this, so adding pearl and gunmetal together can definitely work well.I thought the FA in the video looked awful dark, but your Gunmetal screen is pretty dark, too, so I wasn't sure. Based on your gain estimates for combinations of various FAs, I think I'd look to mix some Pearl and Gunmetal to keep gain above 1.0 while remaining relatively dark. I am kind of enthralled with the idea of surprising guests with how dark a screen can be and still be nice and bright in use. And if it still isn't bright enough for 2.40:1 use at 11' wide, there is still the reverse side to do with just Pearl-Poly on a white base, right ?
I'm sure poly or matte-glaze or flat untinted deep-base can all be used with somewhat differing results to achieve the same goal.I actually read the entire S-I-L-V-E-R thread last night and it looked promising for high-gain until I found out the Behr Faux Glaze is off the market and nobody ever confirmed a substitute. Your use of the matte poly seems like it does the same as the faux glaze did, but MM told someone in that thread that poly or even a different glaze was not a good substitute.
Last I read, Mississippi said he judged the gain to actually be around 1.4 or 1.5, so I'm pretty sure it won't be too hard to find a combination that gets a similar gain and shade/color.
As far as a higher gain silver-y mix, I'd look at picking up some Rustoleum SterlingSilver metallic or (if you really want to go dark-colored yet high-gain) Rustoleum RealPewter metallic because the Rustoleum is still a pretty good paint for spraying AND it contains a boatload of metallic/mica without as much surface-gloss which allows you to use a smaller ratio of matte-poly and enjoy a ton of metallic gain. I doubt the dark RealPewter would be very friendly at high gain levels, but the SterlingSilver should be very impressive with only enough poly to keep it juuuust under control.
If you've got a decent local source such as Lowe's where you can buy the Rustoleum SterlingSilver for around $30/quart, let me know if you'd like me to experiment with it a bit first...and let me know if you'd like to aim for any particular shade and gain.