Paradigm Persona 3F Owners

I am interested to know a few placement answers from Persona 3F owners. What worked best for you?

1) Distance between speakers
2) Distance to side wall
3) Room size

I know these speakers and like them a lot. I will do a home demo however before I do this I want to see what others have done to get the best sound.

I know 1 person has mentioned that the best sound is obtained when the speakers are spaced rather far apart. I cannot do that in my room.

https://systems.audiogon.com/systems/7605