It is so sad to see this divorce unfold the way it has. My parents divorced a long while back, and let me tell you, you have no idea the things custody battles and divorce does to children. I dont even know where to begin to explain to these parents all the things that they are doing that my parents did, and continue to do to this day.  
 
To live each day, unorganized, not knowing where you are supposed to be, what homework needs to be at which house. I dont care if it is 2 weeks here and then 2 weeks there, for a child it is confusing. Can you imagine as an adult, moving between 2 houses every 2 weeks? Can you imagine the organization it would require of you? And imagine each house having different rules, different scedules. You never find a point when you can relax. Making sure not to mix clothes from one parents house with another. Knowing that every single day of your life, every single word you say can and will be used against you and the other parent.  
 
Just because you interview the children. and they seem fine, they are not. Children know why they are being interviewed. They know what it is for. Dont be so foolish.