So what happened to the other sock? Personally, I think I'd be better off cutting off my heels so that I could make socks out of straight bits. Or, and here is a stroke of genius I believe, how about knitting a sock out of straight bits but cunningly leaving a slit for the heel. Then you could put it on and darn the heel whilst it were on the foot (needs considerable bodily flexibility I admit) - resulting in a perfectly fitting and tailored sock (or two).

Kris