I have a Sharp XV-Z91E and I would like to mount it on the ceiling rather than have it on the coffee table I`m currently using. I don`t need much depth from the ceiling, maybe just about 10cm maximum. Does anyone have any experience of mounting this projector on a ceiling? Do I need to get a specific mount from Sharp, or will one of the universal types I have seen fit OK? Obviously security of the projector (ie not falling off!) is of paramount interest, so if the official Sharp is the way to go I don`t mind paying for that. If universal is OK, which one would people recommend? Thanks!