Woodfired Surface

I love the effect wood ash has on my chun glaze. I was able to get this effect on the surface of my chun pots in my September firing. In this firing I used almost 100% pine (native-cyprus) to get the result below in 13 hours. I haven't been able replicate this with hard woods so far. I am still getting the pine from a section of dead pine trees on the farm that my grand father ring-barked years and years ago.

Surface detail: Effect of pine ash on chun glaze over 13 hour firing