I did get enough knitting in to determine that the size 5 needles are improvement. This really is lovely yarn and it is very warm. Just the thing to use for a scarf for someone in Minnesota, USA.
Unfortunately, even on the #5 needles, it still curls like crazy.
On the plane home from Istanbul I tried to rip out the scarf. It is fighting me. I seem to have made a few tiny knots in the yarn inthe process of knitting it up. Now I am stuck as I try to frog it. Do I cut open those tiny knots made from a few strands of the yarn? What happens then when I knit the yarn back up? Should I actually cut the entire piece of yarn at that point? That will make my final scarf have more ends that need to be worked in, but maybe that is best.