I just made a discovery on mine that has made it a million times easier to use. I've replaced the firesteel striker I was using with a fine toothed jig saw blade. Sturdier than a hacksaw blade and smaller.

The saw blade can create a pile of shavings in just seconds and generates an incredible amount of spark compared to what I was using before.

Best of all they came ready to go 2 to a package. I didn't have to buy a hacksaw blade only to use an inch of it.