Randy,
That is attractive kit.
What are the details re the tube on the ferrocerium rod of your Hot Spark? And why does the Firesteel not have one?
I have the same 2 rods. I have wondered about the risk of rusting after the first use but have not experienced any yet (probably due to a fairly dry climate). I have been carrying an unused Hot Spark in my pocket for about a year. The rod does not show significant wear or deterioration, however the edges of the scraper seem to have lost some of its sharpness!
Thanks,
John