We are traveling for Christmas across the country by plane. We bought my infant his own seat, and planned to bring a travel car seat for the plane rides and car rides while we're there for 10 days. More and more I don't want to bring the travel seat on the plane, though it's light (the Evenflo one). I'd rather order it and have it delivered to my parents house, and keep it there for any visits. I was looking into the Cares Harness. My child will be 11 months old, 22-23lbs, and 30in, so the minimum requirements. Any experience with the harness, especially this young?

http://kidsflysafe.com/