Thanks for the suggestion. I never would have thought of that. I know that stockinette stitch curls, so I thought about going up in needle size for less tension. If I backed the scarf with polar fleece, it might have enough stiffness to prevent further curling. I thought about cutting a piece of fleece just shy of the edge stitch and then sewing it in place. This will probably create a ridge, but that's allright. I guess I'll make a swatch first before committing to an entire scarf. I do like the inside lining idea for extra warmth tho. Hmmm...