A quick update -
I moved the speakers a bit more closer together about an inch total. That tightened up the bass, pulled the vocals a bit more into the room and the layering, depth, width and the focus of images in the soundstage went up a notch as well.
I have Audience F3 power cords on the X260.8 now that I purchased in the interim and all if these changes I’ve made resulted in a good improvement. Will continue working on it.
From the cables standpoint, planning to try Analysis Plus Silver Apex and Kimber KS1126 on loan from The Cable Co. Both sets are silver plated copper. Going to compare them to my Acoustic Zen Absolute Copper. Will post when I do some listening.