I think you missed the point of the two questions, which is a question of what scholastic potential issue. What you are measuring is something that I might call scholastic actuality. It is how good they are with the tools they have. Potential is how good they are if we normalize the tools.
Granted, we don't have to go with that definition. If you want to call what I'm calling actuality potential, then that is fine. Just redefining a variable. But then we need a name for what I'm calling potential. Potential potential sounds a bit weird, but naming variables is hard so I'll use it as a placeholder for now.
So now that we have academic potential and academic potential potential, which should a person be ranked based off of when going to college? Given that academic potential is more dependent upon environmental factors that will change and be normalized between all freshmen (to some degree, there is still some differences), then should academic potential potential be a better predictor for success at college?
That isn't the complete answer, and real life is much more complicated than these simple equations. Just like emotional support can lead to a more mature individual that even once the emotional support is gone they have a life long benefit from.