Our state laws changed as well a few years back, but it stated specifically that you could not request a modification just because the law changed--there had to be a change in court-ordered parenting time. There had to be documentation of that change.
In our situation,
BM got an order to stop visitation (long story...) in 2002. The CS law changed in 2003 to include parenting time in the calculation. In 2004, my husband and BM signed an agreement re-establishing parenting time exactly as it was before 2002 (EOW, 4 weeks in summer, alternating holidays.) We filed for a modification, and CS dropped almost $200/month--for two children. (It actually should have gone even lower, but for some reason CS officer didn't include about 20 overnights/year that were included in the new agreement. We didn't want to push it though.) Kind of ironic that CS would have stayed the same if BM hadn't pulled all her garbage.
Still not sure why, but BM didn't respond at all to any of this. The modification was all done through the mail, with no attorneys. Since the agreement re-establishing parenting time was never filed in court (BM was supposed to, but didn't), I'm not sure whether or not it would have been upheld in a hearing.
Yours is a tough situation though because you definitely don't want to rock the boat and end up losing time with your
SS. And if Indiana is the same as our state, you would need a new
court order--either a stipulated agreement signed by both parties, or an order set forth by a judge. It's not enough just to say you have SS more than the
parenting plan says. Good luck....