Need help picking a screen
I am building a new theater, and need help/advice on which screen to use. In my last house/theatre, I used a Da-Lite 119" fixed frame. Had no issues with it, but at the time I picked it solely on it's size. Maybe I got lucky and found a good brand & model, but I'd like to make a smarter decision this go-round. Plus, it was pretty pricey.
I want a 16:9 screen, in the 125 - 135" diagonal range. Room will have almost zero ambient light, and will be painted dark grey from floor to ceiling. Will be using a Epson 5050UB projector. I do not need rear projection capable or audio transparency.
Do I need a white or grey screen? I think white, but am not sure.
How about gain? The higher the better, but is .9 ok?
Any specific MFGs that are better than others? I'm fine with Da-lite again, but if I can get similar performance for less $, that's a win.
Thanks for your guidance.