Thank you, Martin! You’re right in that the problem is because I have one bone. I don’t know what I was thinking…it doesn’t make sense to have just one bone (in a case like this anyway). Maybe disabling Auto Normalize would make it work but I think I was just doing it wrong no matter what. As soon as I made a “root” bone for my “hair strand” bone things worked fine (on the Blender side of things anyway).