Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
has he confirmed in an email that he will reduce the times he has the children>
In that case you can use the email to show to the CMS that he no longer has the children 8 nights a month
With regard to the traveling he cannot force you to do any travelling - if he wishes to try and enforce the Order he will have to explain why you should do one in four when the order said one in eight!
Please do not worry if he takes the matter to court then you can deal with the matter yourself.
Please ask if you need further details
He is very manipulative
Simply forward a copy of the email saying he does not intend to have them to the CMS and ask them to recalculate
Also email him and say that since he will no longer be making seven trips a month you see no reason why he needs you to do one.
If you wish to compromise then say that you will continue to do one trip in 8 - which is once every two months assuming that the Child Maintenance is changed to reflect the fact that the children spend four nights a month more with you