We already know he's highly gifted. It's hard to know what's gifted, what's ADHD, and if there's anything else. He's had enough of those tests for us to know about the ADHD and gifted diagnoses.
If you seek further evaluation, you can hand them the previous testing-- having findings in hand may save them some time.
I am not of the school that says "gifted" has to mean "social problems"-- I've known gifted people who are socially apt. To me, if you're wondering about AS, and seeing social problems (trouble connecting with peers, annoying persistence in topics that don't interest others), it seems worth investigating. My impulse is always to know rather than not know.
DeeDee
