When my carried weight exceeds the threshold for any given load tier, nothing seems to happen. It shows the current total weight, but it doesn't change whether I'm carrying a light, medium, or heavy load. There is a drop-down where I can change it manually, but then I'm not sure what the code in the carrying tiers is for. If it were something I can type in, I could at least not have to keep checking the book to see how much I can carry. If I'm doing it wrong, please explain the proper use. Please and thank you.