Interesting!Brian it is because it isn't the best way to do it. I am lucky I had the delays I did because the Auro way is the best way. Do some research on the Auro vids on YouTube, and I wish you could invite Wilfried on as a guest on your Podcast someday.
I am still going to have all 9 speakers the same, just smaller cabinets in the height layer. All the same drivers and crossovers. I plan to build the upper layer cabinets in the spring. I will post more pics on the project, and show the build.
Even Dolby is now on board with the 30 degrees that Auro uses. That has to tell you something.