It appears gravity has done a decent portion of the work on this fix. Most of the hemline is now matching up a good week-and-half later. A few pics this morning:
|B4419 hooded cape front|
|B4419 hooded cape back|
|hems still uneven on the back curve|
So I'll check the hems again next week. I've already decided I will hem the layers separately then hand-stitch them together after I attach the layers, so if gravity doesn't do the whole job for me I can still adjust it that way.