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When a pattern says to increase IN the next stitch, I use the kfb (knit in front and back of next stitch) since it uses a stitch. Other increases are between stitches and will throw your count off if you don't take that into account.
"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