One course I took years ago... my old gunpowder goes this way now... mix powder with acetone and pour the goo into ice cube tray, about 1/2 inch or even thicker..
Once you light it you have a mini flare.
Flares we try to carry for super emergencies.
Other than that we tend to carry dry hemp and a striker of some flavor. And try to start fires that way as often as we can. So its a reaction thing... not ...hmm how the F does this go again.
But then I'm anal and have other backups that most have mentioned in my survival thing.
Going to look into that packet of wet fire stuff,if I can figure out what it is, if an Alaskan says it works... well I'd just assume it does.