I think I also might start a new collection of rolls. Attack rolls seem to fine, as far as my data show. But attacks requiring saving throws - especially Sacred Flame - feel like they are being resisted way too often. But well... that's a feeling I have. I'll see what actually happens, once some data have been collected.
Man for having such low armor classes most mobs have a heck of an easy time passing a dex save against Sacred Flame. I think I have hit with it 5 times in multiple playthroughs. I just give Shadowheart a bow and have her shoot things vs cast it. More reliable.