The way I'm reading it, you would sc all along the edges, making 3 sc within 1 sc for the neck corners. That will prevent your collar from puckering or drawing up. HTH.
"The boisterous sea of liberty is never without a wave." Thomas Jefferson
OTN: Freestyle afghan, cable afghan, scarf (for me!), entrelac scarf for Mumsy and Doll Bag for DS.
FO: 15 preemie hats, 4 blankets (for HAIN), lap blanket, 4 - 12" squares for the Squares of Many Colors project.