<span style='font-size: 11pt'>Heather, how wonderful that you are peeling back the layers(like an onion) to find the core. You have done a great job of tracking down the diagnosis and the experts who deal with it. Phone networking did wonders for me. If that particular expert didn't know, I'd ask them to refer me to someone who might know.
My son is similar to your difficult child in that he has shades of several disorders and nothing stands out but being oppositional. He didn't have a traumatic childhood (although we had a traumatic parenthood) unless you call febrile seizures at 8mo,14 months and 22 months traumatic. Who knows what triggers behaviors? It was difficult to find the right environment and treatment because my difficult child didn't quite fit any one treatment plan.
Good luck and keep up the good work. I'm with you about driving an hour and a half to get the information you need to help your difficult child. :bravo: </span>