Hi Raul,
You say "Paul has to answer." Actually, I don't, but will do so now as a courtesy to you. I didn't respond earlier because I thought that what was already posted adequately responded to you.
Your suggestion that should send the fluids to the original recording engineers (studio engineers? mixdown/mastering engineers? lacquer cutting engineers?) makes no sense to me whatsoever. They don't have hard drives for brains; they can't "replay" sounds once heard years ago for comparison. And even if they did, how would they listen to the vinyl cleaned with these formulas except on their equipment ... which necessarily has its own sonic signature?
The reason for this thread is really quite simple: whether the knowledgeable, experienced and technically-oriented vinylphiles here on A'gon think the vinyl sounds better -- or not -- after using the formulas in my 2-step process. None of us need anyone else -- whether a recording engineer or our mothers -- to agree or disagree with us when we listen to something on our system and say "that sounds better," or "that sounds worse."
Having now responded, I respectfully ask that if you want to continue this debate, please start your own thread to do so. People are using the thread to post their feedback on using the formulas, and others are coming to this thread becaue they want to read that feedback ... and not debates on whether we should or should not have recording engineers tell us what sounds better -- or worse -- on our own systems. Thanks, Raul.
Best regards,
Paul