Good point and well made but sadly the Spark Lite is probably not that tool.

I have had difficulty using a Spark Lite whilst having cold hands and being chilled. This leads me to think the Spark Lite would be next to impossible to use if you were hypothermic. It is way to small to use. If you had frost nip or bite using the Spark Lite is likely to cause tissue damage which would further hinder your progress.

It surprised me to that the Spark Lite had an NSN No, do NSN items get tested in the real world? Or does the item just go through a cataloging process.

A survival tool that cant be used when you really need it will send you mad, make you angry and hammer your confidence: all things you want to avoid when your life hangs in the balance.