I'm right there with you - my ex is battling our 11 year old - My dad had bipolar and my dx has changed to bipolar - I'm concerned...I went through the list for child symptoms and sent them to my ex - we agree on about 80% of the items we've seen - some may only happen at the other house.

I have the same concern about mood stabilizers - I just started so I was going to wait and see how I did and try to make some kind of judgement if he needs them?

I hope things go better for you and the 11 year old...