Thanks for the reply. Your reply and some things I've read are exactly why I posted- the things I've read don't necessarily align with what seems to work in the software. I arrived at my current placement by using the CBT calculator and playing around with different positions. I find no such favorable arrangement when they're mounted lower. Can you help me understand why lower is better?
First, explain to me what you see in the software.
I see a coverage that has a lot of loss at the front and back compared to the focal point of the array.
To even this out you need the focus point positioned so that it shoots over the heads of the front most rows and begins hitting part way back while continuing to shoot even further back. At this height you are pointing at one place in the audience.
If the speakers were lower, say 3-5' over the heads of the audience (depending on distance from the speakers to the first audience row) you could accomplish this. That is what these speakers are made to do.
Wrong tool for the job. I can use a screwdriver as a chisel but it's really not the correct tool.