I live in Texas. My ex-wife and I have joint custody of our 5 year old son. He lives with me. I fear that our arrangement will hinder him as he starts school this fall. He rarely sleeps in the same place for more than a few nights and never really knows who he is going to be with. My ex has decided to move in with her boyfriend in a differnet city. She wants my son to go to school close to where she will be living beause it will be to far to drive on her days that our son is with her. I am contimplating seeking full custody of my son in an effort to ehlp stabilze his lifestyle. What are my chances of winning?