I'm considering where to place a projector for a room that will be, when finished, about 21'x11', with a height of around 8.5'. I'm planning on placing a DIY screen on the long wall, projecting across the width of the room. The house is currently under construction. The adjacent room will be a study. I have the option of ceiling mounting a projector in this room, projecting the beam through optical glass in a sealed port through the wall. I've got a few things to work around-like a drain pipe and studs. Mounting the projector in the next room will allow me to increase the throw distance, eliminate projector noise from the viewing area, and avoid placing the projector in a small space that could contribute to overheating. Since the ceiling in both rooms will be high enough, I can also position the projector (and inital projection beam) high enough to walk under it. My question: I plan to angle the glass in the port slightly to minimize reflections, use vertical shift and probably some horizontal shift to center the image on the screen. Will shifting the image as I plan, within the manufactures limits distort the image on the screen?