Gauge swatches lie. I have never had a swatch match up to the stitches per inch I get when I actually start knitting my project. I have made enough sweaters and tops over the years to know pretty much how to compensate for my tension. I have several baggy oversized sweaters left from early days as I struggled to find a way to knit to size.
I'm a loose knitter so I go down a size and go down 2 needle sizes then measure the object about 4" in and very seldom have to rip out and start again.
"Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it's the only thing that ever has."--Margaret Mead