Since it says to slip that first stitch, and do the increase one stitch in, I think that you should always keep the outer stitches in knit. It will make for a more even edge. There will be times when you have 2 knits in a row at the end, but as you do your ribbing increases, you'll see that they kind of meld into the increased edge and look fine.
"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