When I've done crewnecks, I usually have knit them twice as long as I want them to be and then folded them over. The edge in that case gets sewn to the seam where I picked up the stitches, so the bind off never mattered. Makes a nice collar.
However, for a crewneck that's not doubled, :thinking: Straight knit bind off may prevent it from being wavy, but I'm not really sure.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry