In the process of building my home theater. I was about to put my electric box, HDMI box and some blocking for my soon to own, Epson 8350 projector. I got the throw distance from projector central's projection calculator to figure my distance, which was 16 feet for a 120" diag. screen size. Just today, out of curiosity, I downloaded a brochure from Epson on the 8350 and it says "80" widescreen — displays an 80" widescreen image from just 8' away, or a 120" image from just 12' away" Who do I believe? Any way to calculate the "sweet spot" from the projectors specs?