That's exactly the whole premise behind the Core program -- you summed it up beautifully. It sounds like you would be a good Core person! Plus, with you being so aware of the junk dangers, you probably won't even have to count if you don't want to. The people who come in saying "oh boy, I can eat as much as I want of xxx and xxx" ... those are the ones who really need portion control. And while it's true that you CAN eat some things unlimited, you can gain if you don't watch it. Oatmeal, for instance, is Core approved, but if I ate 7 packages every morning ...
Welcome!