The old Beehive pattern books of the 40s have a way of doing edges when you're knitting one row purling the next--when it's a purl row you knit the first and last stitches, purl the rest as usual. You get a flat edge that doesn't roll and will sew up easily.

Do you find that your stitches are tighter when you purl than when you knit? Or vice versa? If you can tell which of your stitches knits up tighter you can work on trying to go a little looser on that row to even it out.

Lynn, any suggestions?

Anhata
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