I cheated - gained 6 lbs. in 3 days. It took me a full cheat-free week, including drinking tons of water and my usual exercise to lose the 6 lbs. I figure the cheating put me behind by a week.

BTW, I was 11 days into induction when I had my cheat wknd. As soon as I got home, I continued with 20g carbs a day.