I use the type of tinder that comes with the sparklite when im starting a fire with sparks, the stuff will light up everytime. My idea with the starterlogg is to have larger "chunks" that will start even damp wood burning. I cut off a piece and i'm letting it sit out in the room now, i'll wait about a month and see if it dries out, or anything else happens that causes it not to light.
If it will last a month thats good with me. I try to go through my kits every month and check things anyway.
Dean