@fleschler wrote: "I couldn't imagine the speakers at a 45/45 angle towards me."
I can understand that that's just too much visual weirdness for some people.
The first photo in this show report is taken from well off to one side of the centerline. As you will see, in that location you are well off-axis of the near speaker but nearly on-axis of the far speaker.
https://parttimeaudiophile.com/2015/10/22/rmaf-2015-audiokinesis-violates-space-and-time/
Unfortunately the write-up doesn't mention the sweet spot width. But it does talk about soundstage size, in case your first instinct is that the soundstage would be compressed.
"Among the best disappearing speakers are omnidirectional speakers."
I agree. With omnis, the near speaker still "wins" both arrival time and intensity, though it doesn't win the latter by as large a margin as with conventional speaker. So I think there is an argument for the approach I described even compared with omnis because with my approach the far speaker is the one that "wins" intensity.
But you'd have to get past the weirdness, and that may be asking too much.
Duke