I *think* the only one you need to size according to plan is the protein and everything else is just the number of servings.
From what i understand, the only difference in portion size is the protein. The rest of the difference between plans is just the number of servings for each, like gold has 3 V, Green has 2 v (I think), etc. So the size of the veggies, fruits and starches is the same just the number of servings allowed is different.
Is that as clear as mud?