My son is 9 and has been diagnosed with ADHD for about 2 years now. It started as a major struggle to keep on track. My ex and I had joint custody with him changing houses every Monday. In sept of last year my ex and his wife started having issues and asked me to take the kids full-time which I gladly did. However getting child support out of him was like pulling teeth. During that time my son's behavior, mood swings and generalized demeanor improved greatly!!! Now my ex wants to return to shared custody and I cannot get him to understand that I don't want my all my son's progress to be derailed. I want him to spend time with him and came up with a solution that everyone agreed to but him. Are there any good articles that prove that shared custody is not easy for a child with ADHD?