Hi Gurus, I received my Sanyo-Z3 projector and want to mount it to the ceiling. I already have the power and 2" conduit to run the necessary cables. I read that the top edge of the screen should align with the PJ and viewer eye level should be at the center of the screen and so many other things that got me confused. My room size is 11' x 17', ceiling height is 8'6". The screen is DIY blackout cloth 100" diagonal. The seating is at 12' and 16'. Can someone give me a little run down what should be my screen height from the floor, should I use extension rods for the ceiling mount and any other tips, techniques that I should consider while ceiling mounting the projector.