I�m quite familiar with F&P which is a highly regarded and rigorous method of evaluating reading. It doesn�t have anything to do with common core per se so I�m not sure where that comes from. G is indeed considered grade level but it would place you in the lowest 1/3 of readers at our school, in the pullout support group. The high readers for 1st are usually moving into early chapter books like Magic Treehouse at around M. High reader DS entered 4th at Z, high reader DD left 3rd at Z. DS2 is in K and just learned to read this year is at K. We are at a public charter and I would not consider accelerating because of my brothers terrible experience.

It would seem that the school is open to the acceleration but being reasonably cautious.