I haven't been this excited in a while!

You have a great looking system and congrats on branching out in other directions. My journey went through a few B&W speakers back in the late 90's and varied pretty widely. Two speaker brands I've really enjoyed over the years (on my progression towards higher efficiency speakers have been Verity Audio and Devore Fidelity. I did work with a Wilson and Magico distributor years ago and have had The WP8 and the Sophia in my home, but long ago. 

I recently had the Harbeth C7es3 and found the sound to probably be a bit more detailed than you are describing from this older, and from my understanding, warmer earlier versions. I was really impressed with them. The detail retrieval was there but the annoyance and tension that the upper mids and treble was really non existent. 

I would pull them out a little, move your set back if you can. Also when nobody is around if you have WAF issues, take some blankets and pillows and toss them in the corners behind the speakers. It's easy and a fast way to change the sound and experiment a little, as this seems like what you are doing. It will look awful but just close your eyes and listen for differences. I've used the bass "bungs" they're called to plug the ports, but have always worked with position for better results when possible. 

Have fun and enjoy!

I have really been enjoying these speakers.  I swapped back to the Sophias for the first time yesterday.  I spent most of the day listening to music.  I suspected this would happen and it did....now the Wilsons sound bright on some material.  Some albums still really impressed me like they have for years but overall I did not feel like I had been missing anything.  In the evening, I switched them back and as of now, the Harbeth are preferred.  I am very fortunate to have had this opportunity and glad it has worked out.  This is the first time that the Sophias are over in the corner in time out haha.  

@deep_333 

Those Yamaha speakers are certainly beautiful and it would be a joy to audition those.  There is no return window on my gear as I only buy used from individuals.  Ironically, my worst experience on my Wilson journey was when I bought some from one of their top dealers.  I will keep your recommendations in mind but am not ready to make either of those moves at this time.

@bjesien 

Appreciate the kind words.  I am single so there isn't anyone to please but myself on the aesthetics.  I have loaded up the bench with blankets and pillows and will see if I hear a difference...thanks for the easy idea.  Those green triangular pieces behind the speakers are GIK bass traps.  The bungs have toned down the bass slightly and I like how it kind of cleans up the sound.  Harbeth was nice and responded to my inquiry saying this is definitely a great way to tailor the sound.  The lady said they will add this to their FAQ section.

Great hearing your impressions. The tension between fast / detailed vs more natural and musical is an ever present variable that it is easy to loose track of by "auditioning equipment" and turning on your analytical side. If you get led by the analytical side you can easily be drawn to detail and sonic theatrics... and along with way loose the emotional connection. For me that has been true. I now have a system with all the detail... but it is not out in front leading... it is in its proper place and the music leads the way. It draws me in instead of putting fast transients and crisp transitions in my face. Jazz is laid back and causes me to fall into it. Sounds like those speakers may have moved you in that direction. 

To the OP. IMHO, seems like you prioritize listening to gear versus music.  Enjoy the journey. 

I made a great discovery today.  My midbass bloat or however you want to describe the dark and muddy sound I was getting was caused by poor setup.  The Skylan stands have two foot options, one is a threaded rod with a plastic coin on the end that I had installed and resting on foam furniture sliders.  I have been working with their position and moved them out to listen to the Wilsons.  Yesterday I remembered my Herbies cone/spike puckies that my subs are on.  I haven't had my subs connected in a few years so installed the spike pegs to the Skylan stands and set them on the Herbies.  I could not believe how the sound changed...the muddy bass was completely gone, no need for the bungs in the ports.  Everything was cleaner and more focused.  Loving my Harbeth!!!