I'm so glad you got it fixed to your satisfaction.
Few things so grumble causing as reverse sewing...
My friend Barb and I joke about our own quilting concerns that "it isn't easy being us". A lot of us quilters are like that, it brings out the OCD and the meticulous and all sorts of things that are really good -- except that they can suck the fun out of things. There are things I can live with and things I can't, all I can say is that I've never had to put a mistake into a quilt on purpose. Plenty of mistakes all the time!