Hi Peter,
I would summarize my past 10 weeks of system evolution as follow.
1) Change of speaker cables. This brings in significant lower mid and upper bass. Tympani, cello, bass brass wind instrument have more authority more oomph. Previously I had something like a bird-eye view with tremendous air kind of presentation when listening big orchestra. Now it is like I am sitting more in front roll and instruments in the back of orchestra are pushed up closer tighter. The sound is fuller denser but feel less space around the orchestra.
Btw, Peter, it is funny you and Al went to concert together, sat next to each other, heard the same sound and music, but interpret sound totally different. May be it all comes down to our head not sound itself because we all can hear the same thing.
Note: Cable and system sound balance are influenced by gears I use in my system. In other system different finding could be found.