[David Mendicino]

Is this a feasible, and benificial choice, in a completely light controlled room with all walls painted 18% grey?

I currently have a 1.0-1.3 gain 120" diagonal 4x3 screen.

 

[kelliot]

Optimal, no.


Seeing as the gain you have now will be similar, you will get slightly better black level, but on balance, I wouldn't do it unless you decided to get a brighter projector, paint the room a lighter color, and/or put a small level of ambient in background to read the controls on the remote.