The only thing is I have learned that she left bonuses out of her agreement with the mediator. I am going to have a lawyer send her a letter that she must provide. then I guess go after a modification.
During your divorce you had the opportunity to have her bonus's written into the agreement. Sounds like you either had no lawyer or not a very good one. You signed this agreement your state law says it can only be revisited every three years. If you wanted her bonus included in the calculation, you needed to insist on that back when you were still negotiating your divorce.
I still don't quite get what you are wanting. Sounds like you want to give her some paystubs that don't show your bonus???? Or does she already know that you *did* get a bonus and still have not paid her the 30% like you agreed to do. You can't let this go to court. You don't have a leeg to stand on. You agreed to pay 30% of your bonus and now you need to pay it.
Now is not the time to decide you no longer like the terms of what you agreed to. It doesn't work that way. If you buy a car and then a year down the road, decided that you think you paid too much for it, you can't go back and rewrite the loan or contract. You agreed to pay that amount, now you have to pay that amount.
The Gov cannot give anything to anyone - that they have not first taken away from someone else.