For what it's worth......
Just finished comparing "new 45 RPM super duper brand new 200 gram pressings" of the Dead's American Beauty and the Allman Brothers' Idelwild South. My mint condition original LP's from my mid 1970's high school days, lovingly played over and over and over again for the past 38 or so years (and simply cleaned with an AQ carbon fiber brush for about 10 seconds per side prior to each playing), sound WAY better.
Just finished comparing "new 45 RPM super duper brand new 200 gram pressings" of the Dead's American Beauty and the Allman Brothers' Idelwild South. My mint condition original LP's from my mid 1970's high school days, lovingly played over and over and over again for the past 38 or so years (and simply cleaned with an AQ carbon fiber brush for about 10 seconds per side prior to each playing), sound WAY better.