Almost finished with my test knit, when I slipped on my "Adult Large" and realized it was more of an "Adult Medium". Hmmmm? Checked my gauge and, oops.
I DID do a swatch and a I WAS spot on with my gauge of 9 sts/10 rounds per 2 inches, but now? 10 stitches/14 rounds per two inches.
How did that happen?
Lesson learned -- knit swatches WITH the needles you plan to use!