I did cast on for the Small size, divided sts equally in 3 dpn needles. I started with the darkest color and I plan to use it in heeels and toes,too. I will blend in the other two colorways as the pattern proceeds. In fact, I’m using some leftover yarn from my Tropicalia Shawl prototype, so I know they blend so well together. So far, really happy with my choice.