Dear kathuast,
Thank you for your thoughts- i have just come back to this thread and seen them.
I think the social thing is huge- my son is generally very good socially in that he can build friendship quite well and managed to do it after his grade skip. But he is already (arghhhhhh) concerned with fitting in and not being daggy/nerd. He uses the word nerd as an insult- his father and i could have taken offence as we fit pretty neatly into that description. I wonder whether for him a major advantage of the social situation at the selective school could be that working hard and enjoying school would be the dominant culture of his year. I think some of his concern regarding fitting in is due to some anxiety which we are trying to help him work on.

Thanks again for your thoughts
HHBELLA.