Are you using a solicitor MILU
We didn't but managed to come to a fairly amicable arrangement. However Ihave wondered if I sold myself short by not using one.
Following on from the paediatric dietician appt for ds2 they sent through a further appointment and exh happened to see the letter at my house and asked me why hadn't I told him etc. The simple reason I hadn't told him was due to it being inconvenient so I was going to try to change it.
What is his problem? I think this totally demonstrates how controlling he can be.
He sees DS2 every fortnight for 24 hours when new p is also there and they totally restrict what he eats and drinks because she s a health freak and exh is still trying to impress her, plus dependent upon her for a roof over his head.
The boys complain about how different he is when she is present - pleasant and charming, with them alone - sometimes snarling and gritted teeth and with me - ds1 says daddy wouldn't talk to NP like he does to you mummy!'
I have explained there are three sets of rules, mine, his and theirs. 
Then exh sees him alone for 3 hours every week when he has been known to buy him cheesecake and also a smoothie - which was also suggested not a good idea by dietician.
Therefore what's the reason for him acccompanying us to the appts?
And as predicted by me ds2 is getting a bit obsessed ie looking at calories, saying he's not allowed to eat anything and weighing himself. I don't want him to get like this he is just 9 FFS.
TBH not sure he needs to go back to see her.
I can't see the point and I don't want so much made of it. I am not in denial he is a bit overweight but I am not sure this is the right way to go about things.