Sorry to just jump in but I have a similar problem but a slightly different question. My white wool scarf is curling as well and I was planning on adding a green border using a smaller needle but then I thought I could block the white scarf-part first. Should I block then add the green or knit the green border and then block? I'm just worried that the green wool might bleed or maybe the scarf's dimensions will make it hard to knit the green border. Please help. It's for my baby's first Christmas.