I think you have to go by how hungry you are at the time and do the old eating slowly trick and stopping when you've had enough! Some mealtimes your body may tell you that you need a big plate of something hearty, and other times you may be satisfied with a small plate of something!! I think the whole point of SW is to feel satisfied by the free foods so you don't go overboard on the naughty stuff! So basically what I'm saying is don't keep portion sizes too small at the risk of wanting to binge later on because you haven't had enough!!! Ooh, and don't forget the 1/3 sf trickXXX