From looking at the user guide for the 8350, its got me wondering about projector placement. Currently, my old projector sits on a TV mount (essentially a shelf) mounted to the back wall near the ceiling. I would say the lens is about 12 inches from the ceiling and the lens is about 2.5 ft above the center of the screen - so the projector has to project downward. I am wondering if the new lens shift capability is going to allow me to point the image downward enough - with the projector sitting right side up. My old projector had to sit on the shelf upside down to achieve this. (It even came with stick-on rubber feet for this purpose.) So I guess my questions are 1) Is the vertical shift pretty substantial, and 2) does it shift as much "down" as it does "up"? The A-shift vs. B-Shift described in the user guide confuses me. It doesn't really explain the A-shift.