Really, there are a lot of room dynamics involved in setting up speakers, and the best setup in one circumstance may not work at all in another. For instance, yours is a really different setup. How are you treating the headboard behind you?

That said, I find full-rangers work best ~10º off-axis toed so as to cross behind the listening position, but no more than 30º toe-in. Otherwise, the image in between the speakers will be unstable.

Bob