Hello again everyone!
After roughly a month of burn-in time, my "nearly perfect" sound is back and I dare say a bit improved with the new dedicated line.
Bass definitely has more slam and texture, background noise was quiet before, but is now completely non-existent. The top-end is very clean, airy and, yet all of the grating fatiguing edge I initially heard has gone away, (thank God!), and definition of horns, cymbals, violins, is smoother, cleaner, and more lifelike, The critical midrange is about the same, though playing with various IC's I can most definitely hear the differences more easily and distinctly. With my Silnote Morpheus ICs connected to the MHDT DAC, vocals are very realistic, yet sweet at the same time-e.g Norah Jones. The soundstage depth, width, and sense of three dimensional space have all noticeably improved too.
Overall, I would say every aspect of my listening experience has been improved. Did my neurons burn-in somewhat too... maybe? But all I know is that at first I could hardly bear listening due to the new Romex and Porter Ports, and now I can hardly bear to stop listening to my tunes. For around $250 in materials and about 5 hours labor, I'd say it was a worthwhile experiment with happy results.
And as some above have suggested, the burn-in may not yet be fully completed. Perhaps I'll update again sometime around Thanksgiving to see if further changes have occurred.
As always YMMV, but I'm now a dedicated line convert.
Skeptics have a right to their opinion, but as for me the proof is all in the ear of the beholder!
Lincoln