One more question . . . I have an X-1 -- it will be 14.5 feet from the screen suspended from a 9 foot ceceiling I can drop it 6-12 inches. I am going to build a dry wall/ screen goo screen myself with some crown molding on the edge for a "framed" look. How big should the screen be? I want to view both 4x3 and Widescreen movies, and I would even like to inincorporate masking system into the curtain I hang, but I am not sure the ideal dimensions. I want as big as I can get, with out loosing too much luma from the projector or being uncomfortable in the main seats. I could just set up the room and test, but I would like to know what is ideal for this room size. The main seating will be about 12-13 feet from the screen. Thanks!