@cleeds -True that. If you read the papers from RCA back in the day, the carbon black also concealed what was referred to as "plate out" issues, which I took to mean various problems caused by compound under heat of pressing. I’m not sure there was enough carbon black in the records to really reduce static, but I prefer a standard black record for the reason @slaw cited- namely, I can see the record surface better. Yeah, I know the Clarity in theory doesn’t have the sonic compromises attributable to normal vinyl compounds, but having compared them on the same record, the difference, while noticeable, is not that significant to me. FWIW, the fellow who did a lot of work for RCA in the ’70s and whose name is on some the patents, is Khanna. (or the phonetic equivalent).