I'm sorry I am late on this, but man, this situation always makes me cry. I can't imagine the pain it is putting you through and the absolute tradegy of putting Maddie through it all. I would also just document, document, document, and maybe by then you will have more ammunition to go after full custody the next go round. She is getting older and will be able to tell you more and more about what goes on in her Daddy's life - and from what you tell us, it won't be flattering or help his case.
I will always keep you in my thoughts.