I had the epson 5010 with the same lumens. Washout was terribleand i speant countless hours studying alr screens. In the end i painted the ceiling black (from white) and the walls a medium beige (from offwhite). My windows always had blackout shades with a little leak at the perimeter, no change here. Overall, problem solved! Astonished how much darker paint helps. And after one day to get used to the black ceiling now i prefer the look. It matches screen border, stereo components, etc. Best improvement ive ever made. No more washout, even in daytime, lights can be dimly lit if need be. Looks super modern. You will need 2 coats, looks terrible after one.