It seems to me, after comparing printouts between the three colors, it's all a matter of how much tracking people want to be doing - or not doing. When the starchy or richer foods are added in as free, the corresponding number of points are dropped. The bottom line is that it looks like the same program, but as an analogy . 1+5=6, 2+4=6, 3+3=6. The equation is all the same, it's just a matter of which combination of integers you want to work with. That's how it appears to me, anyway.