I was using 15mm needles and the yarn is actually quite thin although hairy. After about five rows, I dropped a stitch and the whole thing just unravelled. So I gritted my teeth and started again and it did knit up pretty fast. Unfortunately I am not pleased with the finished article. My cast on was a lot tighter than my cast off edge, so they are uneven. The contrast yarn, which I am not sure if you can even make it out on the picture, had to be carried up the side and consequently that side is tighter than the other. So its a big misshapen drapy thing. But if you bunch it up round your neck you'd never know! However, I think its consigned to DDs dressing up box.
This post has taken SO LONG to do. I moved the computer today and when I turned it back on its running so slowly and Outlook appears to have vanished so I have no email. Fantastic.