I replied on your other thread. I like having the AP's covering a small area (1-2 rooms) rather than try to have them cover a large area (multiple rooms). You need more access points with this model, but you also gain more control. So, ceiling mounted on a normal height ceiling would be the best method. You can think of the pattern to be a conical one. Maybe a little ovular given that 3600 series ap's have their antennae on either side of the ap.