During the eval & testing process, the school firmly maintained that DS's grade skip was his "intervention" and no other "intervention" was needed. However, there are a few other students who have been grade-skipped (including a few of this nice lady's kids), it was interesting to note that all those students had been tested & ID'd as GT. (DS was never even tested.) The school insisted that his IEP include the disclaimer that his "intervention" had been grade-skipping.
Like Dottie said, I'd totally agree that a grade skip doesn't take the place of GT placement. It should be in addition to GT placement for a child who needs more than the in-grade GT class.
In regard to your older ds, it is so easy to feel like we've missed things and failed them. From what I'm seeing with dd12 set to enter high school next year, a GT id isn't so important the older the child gets. Appropriate placement in AP or honors classes isn't always contingent on how the child is ided so much as how his achievement scores look. If your ds13 isn't unhappy or failing to learn, I would try to reassure yourself that you've done the best you could with the info you had at the time.
