@elliottbnewcombjr RIAA is not part of the discussion. It’s been a standard for a long time and not a variable regarding the remastered vs. original. What I referred to was the the actual production process for making LP’s and the practice of making an eq’d Dub that LP’s in the past were often made from. I have no idea of the percentage of releases used these dubs, or if it was mostly on rock/pop recordings. Also for popular albums that sold well, multiple pressing plants were used in different regions of the country and world. Each of these plant’s received a dub to master from, which would be second or third generation or worse.
A new mastering today could more likely come from the master itself. In any instance it’s highly unlikely a new mastering would use the old technique of a specially eq’d vinyl dub that was meant to keep LP’s from skipping, etc. on mass market turntables/carts of the past.