I proceeded to spend many hours knitting happily along, progressing through the charts (which are much more complicated on the leg than the foot. By then you're home free). Very time consuming but very enjoyable as well, so I was looking forward to sock #2. However, as I went along the nagging voice in my head persisted and it said "you've knit a million socks. You always cast on over two needles to ensure there's enough stretchiness on the cuff. You didn't this time because you're insane and you followed the instructions to the letter and they just said 'cast on' not 'cast on over 2 needles' and you were busy thinking about the charts and you weren't really paying attention to what you were doing and now you.are.screwed."
Of course, I completely ignored the annoying nagging voice until the very very end when I was confident I could try on the sock without pulling out a needle (thus letting fall a row of lace stitches I would never recover from). And, as you've guessed, there is a certain undeniable tightness to the cuff I am completely unable to come to terms with and the sock has been banished out of sight ever since. It doesn't even deserve a colour photo right now.
I'm starting again. LATER. With something with a bit of nylon, over 2 needles. Because it has to work next time.