I checked out Gina K's videos and found one on wood grain technique from 2009. She showed how to make wood grain using more mustard cs and direct to paper technique with white pigment ink and brown dye ink; she also showed how to make plank outlines with the score pal and then ink on top.
Is that the video you were referring to? It was a good one. If this wasn't the video you referenced, I'll do a deeper search on her site.