Has anyone had any experience fighting for or against 50/50 custody? I'm looking to help DH fight against BM request by getting an idea of what has worked for others in getting or fighting against this request.
Any help is much appreciated . . .

Background:
- DH was primary caregiver during their marriage, and has witnesses (parents, church members, coworkers, teachers) to back up that claim.
- When BM left 4 yrs ago, DH and BM had a verbal agreement that DH would have skids during the week and BM would have them on weekends and BM paid no support for the kids. This schedule worked up until last year.
- Last year BM and her mother started demanding more weekday time with skids so DH filed to stop BM from changing things. The court ordered BM to pay CS as NCP, made DH CP and granted BM "extended" possession, which allowed Thursday overnights. *DH would have gladly refused CS if he could also refuse to give BM those Thursday overnights.* (This is even more so true now since it's not like BM pays the CS).
- The court ordered a social study, in which the Social worker stated, it would be best for the kids if "things stayed the same or moved to a 50/50 arrangement". We believe this encouraged BM attorney to push for 50/50.
- DH's attorney set up mediation for DH and BM, which BM attorney refused. DH attorney suggested that DH try talking to BM about keeping things the same. DH approached BM with the argument that DH "would like to try to put an end to all of this, keeping things as is, because so far the kids have come through all of this unscathed and are doing well". BM rejected this saying "I'm not a weekend mother" (despite her being just that for at least 4 yrs) and she suggested a schedule that involved alternating months or something like that. Obviously, DH rejected this idea.

Now, we feel the following things are in DH favor for keeping things as is, but of course, we can't be sure:
- With the previous schedule, the kids were making great grades and had good behavior.
- We have letters from teachers describing their contact and communication with DH over the years.
- When the Court Ordered the Thursday overnights, we saw a change in behavior of the youngest (i.e. fighting, talking back to teachers, defiant attitude), although we can't exactly prove this because we weren't aware that we should have been keeping track of behavior prior to DH going to court.
- The skids have said things that prove BM talks to them about court order/court process.
- BM has not paid CS.
- When the kids spent 30 days with BM at the beginning of the summer, they didn't complete their daily summer homework (only relevant in that BM is requesting a week on/week off schedule, but this points to an inability to keep up with the responsibility this kind of schedule would take).

I've been reading different things on the internet and I've seen things suggesting that a lot of judges are reluctant to order 50/50 if both parents aren't on board, but we can't really bank on that.