theangelboy
500+ Head-Fier
The issue is rhe ringing and harshness is something mods don't fix, that only make it different, not better
Not in my experience. Vegans and paper towel removed 100% of the harsh mids that bothered me. It now sounds buttery smooth. Of course, YMMV.
I also have to agree with @OldDude04. I find my HD6XX rather boring. They get almost no head time, I always seem to be reaching for some other headphone. But, as the old saying goes, different strokes for different folks. Everyone has their own path to audio nirvana.