I had heard that this
was an optional way of creating a "notch" without having to carve
one. I had already used the fireboard a few times with a carved V-notch.
So,I thought I would give it a try. It worked fine on the 3rd
I just put the tinder bundle over the smoking coal
(in the First socket), then just inverted the two and tapped the fireboard
to dislodge the coal down into the tinder bundle. Then blew it into flames.