2sts means 2 stitches.
However thick you want the rows to be, do an even number. This way you change the yarn on the same side each time and don't have to cut and weave. Carry it up the side, bringing the color you're using up from under it to hold it on the side. It will look different than the other edge, but weaving in ends for every stripe won't look so hot, either.
"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