Sorry I don't have the answer for the question since I was facing the same issue. DS8 also have some behaviors fit in ADHD or Asperger characteristics, especially when he was young. I didn't have him evaluate by psychologist because his behaviors seem on the borderline of problem and normal. And year by year, I can see him improved and without problem to fit in school. I found this article maybe it will help. http://giftededucation.suite101.com/article.cfm/highly_gifted_aspergers_or_twice_exceptional