I finally finished my cable cowl, it's not perfect but I like it and it's really cosy. I had intended making it bigger, but when I went back to it today I didn't check the pattern and ended up making a mistake I couldn't work out how to fix easily, so decided just to call it a day with the cabling and finished it off. As it happens, when I put it on now it's a great width, so it's all worked out.