But would you agree that almost all grading from sellers and shops (if they even do that) is visually graded? Visual grading is really just an educated guess. Under and over grading is unavoidable it that case. I've put too many pristine looking records on the turntable that had significant surface noise and I've put too many records on the turntable with significant scratches and a milky appearance that played without even a single random crackle. It is so impractical to judge an auditory article using a visual measurement.