How to set up the helix knitting for the hat, finish the top, and another use for this technique.
Hat start: 1:52
Finish top: 8:10
Another way to use this technique: 16:22
One additional note: If you divide the number of stitches by the number of colors, the last color will go past your start point and the spiral will be slightly lopsided.
Link for German cast on: