I've had the book from the library before, but I can't remember if it's Magic Loop or 2 circ method.
I do 2 socks at a time on 2 circs all the time. If I have to unravel more then a row or 2 on only one of the socks, I just move the good sock to a separate needle and work on just the one sock until I get it back on course and then join them up again on the 2 circs.
It would help to know which sock you're making. And even which method it is and where exactly in the pattern you're having trouble. Could be someone w/out the book can help, too, w/some more information.
Mirl56 at Ravelry, too.
Learn from the mistakes of others. You canít live long enough to make them all yourself. Eleanor Roosevelt
Lady Feb Sweater
more shawlettes, socks