I think a whole grade acceleration will put him with his age group. I think it would be difficult to ask a school to keep a child at a year behind his age-mates while asking for more advanced curriculum past the grade in which you've enrolled him. If you are moving to a new school, he'll be making new friends, so it would be the logical time to move him up a grade.
I'm confused. Maybe I have missed to back story from other threads. Is your ds older than typical for his current grade?
Dd#1 came in right at that same point (1 pt below excellent candidate without the EXPLORE scores). Once we had the EXPLORE scores, she was in the excellent candidate section as well. Her skip has been successful for her.
