This is very interesting, Alan. May I know how you use the resin to start your fire?
I either make feather stick curls with it with my Mora knife or I shave off the resin into thin strips. I have just quickly gone out and done a very small feather stick (not very well either) with this Rowan stick to give you and idea of what i mean.
Wrap the shavings in grease proof paper to 'package' it together then light the paper and there you go. A nice little fire starter that is provided free by nature.
Granted i know a pack of fire lighters doesn't cost much to buy. But the act of collecting the fat wood and processing it, helps with my mental health. so i much prefer doing this.