What offence? I love this cable, I don't have different opinion, I just asked if Copper is better conductor. As we are discussing a cable for Isines, my reply revolved around isines. Yes, this is a thread about Isines, I did recommend this cable for fellow iSine owners.
Where is the offence? To contrary, I am really happy you bought this cable, happy that people still buy reasonably priced cables. Penon Audio needs to be commended for offering high quality cable for the price of pack of cigarettes in NYC. Shipped free. Cable prices have become stratospheric, with no connection to cost of materials, and manufacturing. Sellers like Penon Sudio in Hong Kong needs to be recommended to everybody, especially isine owners. Other than Penon's cable, the only other cable for isines on ebay cost $140. It could be because it is a Silver cable.
EDIT: looked again, it costs $149.90, and offered pure OCC, or OCC with Silver plating, curiously Silver plated is exactly the same price as non silver plated OCC. It is the only cable that comes up in search result for 'Balanced 2.5mm cable iSine'. It USA made cable, if I was American, I would buy American.
I'm happy you like the cable. As for silver content, Penon Audio clearly sais in cable description that they consider it a replacement cable, not an upgrade, it says Silver plated in description. It is a $15 cable.
EDIT: Penon offers the same cable with higher Silver content for $99.00