DS2 has just been given his official dx of HFA. After his school assessment the ASD team weren't sure if he was going to need to be reassessed when he was older, or just if he had some very good coping strategies at school. He scored more than double the cut-off point in some parts of the ADOS, and during that he even related off to them the lists of things he has to do in certain situations.
I've always known he has autism since we started looking into AS with his older brother as DS2 was born. He was non-verbal until he was 3, but now at just 6 is working a year ahead at school, so I know they will be surprised when they hear he has a dx.