Originally Posted by Jan in CA
As long as it's only a couple of rows it should be fine. Twisting the unused color when you come around to the beginning may keep any small holes from forming and helps carry it up the side.
I've done fair isle socks and my hint to you... work loosely or you won't get them on your feet!
Would you recommend doing the socks a size larger or working with larger needles? I tend to knit loosely on most things but I can see where manipulating two yarns two handed could tense things up a bit!
In progress - designing, knitting and writing a knitting book, "Design Your Own Gourmet
Kitchen Cloths and Accessories".