I have been on it all week too. I try not to fill my plate up too much. I think for it to work, we need to think portion control. I dont think you can get away with say, loads of beef curry and then loads of rice on top, just equal amounts really.
If I think about it, I am probably still doing red days. Like yesterday I had tuna pasta (HEXB on red) and for tea I had loads of gammon with a small jacket pot (HEXB) and sweetcorn (would be synned on red). It's just the freedom of not weighing. Or if you feel like having a bigger jacket potato or some SW chips.