I tried reading through all of the posts and maybe I missed it, but I had a question about your side surrounds. I noticed that both columns were wired for side surrounds, but only the back columns on the side walls have speakers. Are you planning on adding 2 additional side surrounds or was that in case you decided to move them to the front columns later?
I have often wondered about side speaker placement when multiple rows for seats are used. When I saw your photos, I assumed that you were giving each row their own side surrounds.
Great HT by the way! Yours and all of the others I've seen on here certainly gives me a lot of ideas and info to use in the future.