Hey Guys, I have a Sanyo Z2 being Drop-Shipped (man, i hate that term) to me sometime soon. This bad boy will be mounted directly to my basement ceiling. The ceiling is, of course a wood joist system for the floor above. This system experiences deflection when someone walks uptairs. Two things: "Dang it", and the other is " how much vibration will a projector take without beng adversly affected? Should I re-think this mount? Thanks.