I used chancing calculators extensively for D16 - didn’t help. There was one school that all the calculators said she was >80% likely to get in. Her ACT score was several points higher than their 75th percentile. She was denied. I believe part of it was that she didn’t show “interest”. Honestly - paying $200 for an application and score sending and writing essays isn’t enough interest??? If we had to do it over again - I would make sure she showed lots of interest to every school, whether or not the common data set says the school values it.