I shoot for 60/20/20, but it's difficult for me to keep the fat content down and the protein content up. I eat a fair amount of cheese, because it is easy to stock in the work fridge over the weekend, and I don't like hauling lunch in everyday on the bike. I stopped tracking it (I use trainingpeaks.com) when I met my weight goal. Tracking it is a great thing to do, health-wise, but it's a royal pita.