Two surprising things I found that improved my imaging and staging...

Sound waves reflect and diffuse off front wall as well as side walls, floor, ceiling and back wall. The phantom center image is an artifact of these interactions. Sound waves reflecting off relatively flat and hard surfaces such as equipment front fascias results in unnatural effects. Proper diffusion is created by varied depth surfaces that neither reflect or absorb excessively.

I can only say try lowering the  equipment rack and try some proper diffusion treatments on front wall, you should hear greater center image dimensionality.  The detrimental effects of a high equipment rack will lessen if rack is further back from plane of speakers, really need to clear out space between speaker plane to at least a few feet back.

Speaker placement charts should all be taken with a grain of salt, including Cardas. None of them can take in account what kind of acoustic treatment you got in your room or the type of furniture and any other artifacts you may have including anything you hang on your walls. Meaning you may have a starting speaker placement with a chart reflecting the size of your room, but in the end you will have to move the speakers around little by little trusting your ears and the toe-in will end up being the most critical decision you make. Be patient, learn about YOUR system and take the time to ENJOY the journey. Being an audiophile is all about testing your system for your ears and not about finding a magic formula on paper.

 What a marvellous post...

Wise and well written....

My deepest respect to you.....

@captbeaver Thank you raising this subject as it is a challenge that I also have. Thanks for the link. My room is not very wide and it would be difficult to get my speakers 70cm from the side wall. What is the distance between your speakers now out of interest?

Thanks

Gary

So how far from your speakers does it tell your listening position should be?
  I can’t get past the first screen.

All the best.

JD

Nevermind,

I found other screens.

JD