Sock blanks are great fun to dye. They afford interesting opportunities that skein dyeing does not. Because you are working with a fabric, rather than a bundle of strands, there are many more ways to apply the dyes with different results.
For "North Copper River" I combined techniques, utilizing wall pours, voids, resists and even a little speckling to get a glorious tonal quality of multiple colors that looks very much like a satellite photo of a river cutting through a barren land with multiple altitudes and depths. I find this colorway infinitely interesting to look at and great fun to create.