Get the best deal you can for yourself legally. If you feel like a derranged year-long Santa, you can do that anyway without having it in legal papers.
THIS.
Do whatever you want but make sure that legally you aren't required to do more than the minimum. Knock yourself out after but don't sign away more than you need to.
And did I see you're going pumpkin picking with your W? Take your son and have fun and leave her at home.
