If you or someone else is seriously hypothermic dry clothes aren't going to do anything, you need a heat source and warm liquids if possible.
Sorry, I was being unclear. I was preferring specifically to an emergency where you fall through the ice, which would be (where I live) the absolut worst case scenario. After getting out of the water, in my opinion, getting dry is priority nr. one.
It seems as though you have already made up your mind about every other firemaking device besides a lighter and that is fine, I hope you continue to get good service from your choice.
IMO flint and mag bars are just like my plug kit and compressor I carry in my jeep, sure most of the time I just put my spare on..... but what if ?????? Chris
I actually did mention in my first post, that I do have a magnesium bar attached to my Sissipuukko, and that as I've tried it, I found it to function pretty nicely.