Your comment reminded me of the story recently about Harry's and how they bought a razor blade company in Germany because of the difficulty of reliably sourcing quality razors. I wonder if the 1DS folks have had supply chain issues?
I'm pretty sure they just resell the blades from a Korean company. I did the dollar shave once then went directly to the company that makes them for a better price. Now I use Harry's which I think are a little better
