Speaking of first-rate speaker installs, when I first sat down on my couch after I finished the installation the left speaker looked higher than the right speaker. I knew I had measured (and measured again) from the ground up and the ceiling down to be sure the brackets were at equal heights on the wall, but then I was second guessing whether I had ensured the brackets were at equal heights on the M22s. I had used intersecting diagonal lines drawn across the backs of the M22s to determine the midpoints -- maybe I made a mistake? So I measured from the ceiling down to the top of each speaker and discovered that they are well within 1/16" of each other. Whew!