I have been reading about Cat Bordhi's innovations for a while on blogland. Although I've never tried knitting socks on 2 circulars, I've been intrigued.
Then I received her latest book for Christmas. Wow! Great sock patterns, but even better -- a technique that can easily be adapted into a generic "formula" for making socks. Not only that, but I also learned two new increases that are truly almost invisible.
Each chapter describes a different "architecture" or shaping formula for socks. These are the Simple Socks with a Slant -- a version of the Foxglove architecture and the increases are asymmetrical yarn-overs.
Bordhi recommends using a double strand of Trekking XXL to simulate the colors of handspun. I had a skein of Austermann Step on hand, and so I did the same thing with that.