Alright, so I decided to make my own mod through the Editor, importing and then changing only the ItemProgressionNames for those two dagger entries specifically, puiblished locally, and disabled all other mods I was running.
No dice. The entire ItemProgressionNames file seems to be a red herring put there to frustrate attempts to mod the game. I suspect I could fill the entire file with nothing but unicode swastikas and nothing would change, at this point.
Changing something this basic shouldn't be this hard.
