I think you missed one important word in his post...
Inquartion is a good way to remove PGM traces and AR after that removes any left over silver from the inquartion. If it made any difference depends on what you started with and how well you did the process.
And if the perfectionist in me can have a word... it's not "hci" or HCL. The first is both misspelled and wrong case, the second is correctly spelled but still wrong case. It's spelled "HCl", only one capital letter per atom.
Ok, I'll keep quiet now.
Göran