Can Mint Frost Or A Toning Patina Survive Dipping?

I had a conversation with JA at CAC about dipped coins. He said, "I could take a roll of uncirculated Franklin half dollars and dip half of them, and the so called dip experts could not tell a dipped one from a none dipped one". Your comment about CAC should read, "any obvious circulated dipped coins will be automatically rejected by CAC".

All dips are not the same as the dip can be diluted to different strengths and time in the acid impacts the removal of toning and metal. If the dip is done correctly, the mint frost will not be impacted. When coins are dipped, the original mint surface is removed, and the coin tends to tone faster and ugly.

Thanks Marve, Slider and Jbuck
CACG grading and CAC stickering have helped foster a "give me originality or give me death" attitude among many high end collectors. I don't think a dipped coin can be considered original. And I can see how an MS or AU coin can be cleaned, wiped or otherwise degraded from original state without being dipped.
Slider, you have it straight from the horses mouth. I had previously read that JA acknowledged that not all dipped coins can be detected. Now, I understand that if a MS coin is dipped properly, as Jbuck explains, even CAC cannot detect it as unoriginal. So I needn't worry about my TPG graded MS coins being deemed unoriginal on account of dipping. And I suppose that would be true of AU58 and perhaps AU55 TPG graded coins. But if I see a perfectly white XF45, I would be safe in assuming it to be unoriginal on account of dipping.
From my experience, and that of others more qualified than I, these days CAC is declining to sticker almost all certified MS and AU Liberty Seated coins being submitted to it. And I am aware of one instance where CACG crossed a PCGS MS64 to CACG MS62.
Whether CAC/CACG have moved their goal posts is a question for another day. At least now I can relax from worrying whether my certified MS and probably high AU coins would be deemed unoriginal because they have been dipped. And I don't need to replace that white, completely untoned PCGS MS63 1875S 20 cent piece in my type set.
Thanks again for your help.