I began my "Einstein" using the Peruvian Tweed carried doubled. It is heavenly! My gauge is right on in number of rows, however, I am a bit off in number of stitches. I'm not worried, I think I can make adjustments when I knit the body.

I found the crochet cast-on very interesting and I will use again with other projects. I love the edge treatment I got by following the pattern slipping one purlwise with yarn in front and then move yarn to back and knitting.