Great suggestion, only one problem.
I get along great with my ex. We even barbeque together (me and my dh, my ex and his wife) along with her kids, my kids, our kids, etc. All get along great.
Meanwhile, my dh's son's mother (bad one night stand) is a lunatic. She has refused visitation, hidden child, false accusations (abuse and sexual) and the list goes on and on. *Because dh wouldn't marry her (he didn't even know her!) I met him when child was 4. Child was old enough during last false sexual allegation to ask the powers that be ""If this really did happen, wouldn't I remember it? And if it did happen, how does my mom know?" Etc. He knows she's a nut, and prefers to be with people who don't ever put him in those type of positions. My husband has told him, if you want to see your mother every weekend, I will drive you every weekend. If you want to see her every holiday, just say the word, it's your life, you let me know what you want. And we explain to him there are minimums on how much he can see her as well, which is when he had the fit. She made her own bed, let her lie in it.
So, my son has in the past just told his brother that "go see her when you want, I see my dad more now than I ever did going by the schedule". The difference is, how the past affects his decisions. My son didn't have these problems. Even going by court schedule, he still saw dad more than that. Now, he sees him alot, but may go a month without, but then 5 weekends in a row. Depends on what is going on at school, etc.
But thank you for the suggestion!