Thanks. Indeed, the soundstage is wide, deep, and very focused. You could have a fake center speaker and listeners would never believe it’s not working.I would expect Bill Woods' horns to work extremely well in a "time/intensity trading" configuration in phantom center mode, with the speaker axes criss-crossing in front of the central sweet spot.
My view of surround is less is more. Apply the same budget to fewer speakers and amplifiers and you’ll enjoy better sound.
You don’t need 10+ channels in most rooms. With a Trinnov, it will route all of the channels to the speakers you have, including creating virtual output channels.