My interest in the Vertical dispersion is from my experience of realizing how narrow it seems to be. I do, however appreciate the benefits the lack of floor or ceiling reflection can be, but I would like to hear a better cohesive blend of frequency when I am walking9 about my listening area. Dido to the floor reflection, but a bit up top would be nice as I am not always seated on my favorite chair.
I experimented with height, output level (a couple db) and found a good compromise that satisfied my situation. My setup is active so I have some flexibility.