Interesting read...

http://trishwilson.typepad.com/blog/2006/04/shared_parentin.html

In my situation, since we are amicable to each other, shared parenting works very well and is of great benefit to the kids.

When your court date for the custody decision comes, show yourself as a cooperative parent who wants the best for his children.

What a mess your STBXW has created!