I scanned a lot of the posts in this thread, and didn't find any talking much about throw distance. According To the calculators online, with a 125" screen, it shows about 13"-19" with the optimal at 15'2". I am assuming that 15'2" is the "optimal" placement?(it doesn't really say that).
I have found people saying that obviously the closer the brighter, but that farther away has advantages, in that the light hits the screen at a more straight on angle. And other benefits as well. With the black out curtains I recently installed, the room is very dark, if not pitch black, even on a sunny day, so brightness isn't an issue. I am thinking of mounting at about 16"-16.5".
Outside of brightness, is this even worth worrying about at all?
Home Theater: Emotiva UMC-200, Citation 5.1 running Mirage M-3SIs, Harman Kardon signature 2.1 running Mirage M-CSI (center) & 4x BIC V-52 (surrounds), Samson S1000 (545 watts x2) running 2 SVS CS-Ultra subs, PS3, PS4, XBOX 1, 2x Adcom ACE-515, Sony HW45ES projector w/ 125" tab tensioned screen or Vizio E-701B-3 - 70"
2.0 setup: Schiit Freya Tube Preamp, Citation 5.1, Mirage M3SIs, Onkyo DV-CP702 (CD transport), Schiit Modi Multibit DAC.