I did 12 gauge swatches before I found a colour combination I liked. I knit it in the round and when I was done it was too wide in the body. The ribbing was fine but then it bloused out, yuck! I attribute this to knitting in the round which created a looser gauge than my swatches, knit on straights. I took it to my genius MIL. She took it up her stairs and surged the sides just above the ribbing. The result was a perfect fit. Thank-you Mom!
Oh, I did finish the bulk of the knitting during the Olympics but did the neck and arm-hole edges after.