Can you get proper imaging if speakers are not the same distance from center?

Audio is all about the compromise. Yes of course the sound will be better with everything moved around. While you are at it get rid of the TV, rack, etc etc. Then of course it will be better in another room. Knock down walls, building the room. Only to discover- guess what?- even that ain't perfect! Mike Lavigne paid a pretty penny to professional designers and builders only to open the next decade fixing what they almost got right. If that room wasn't good enough then for sure no room ever will be. 

So chill. Relax. Pour yourself a nice tase adult beverage kick back and enjoy the good life. Livin' the dream.

This is what happens when you post something without proof reading to fix all the stupid auto-correct errors. Any tech types out there can tell me how to inactivate this counter-productive feature feel free to let me know.

Interesting question. I had AMTs for a decade or two. I think you are correct about straight forward pointing (no toe in). That to me means you can correct for the imbalance using the volume balance control to compensate for being off center..

"But I wonder if there will be a marked improvement if I" ....  the audiophile Sisyphean task!

Don't worry, be happy.....