Still haven't decided what I'm going to do about the bow quiver, but for my great northern side quiver I am experimenting. Took the foam out and removed the metal plate. Put the metal plate in the bottom of the quiver and put silicone rubber caulk in the bottom (on top of the metal plate) to fill up space. Letting it cure, then gonna put the foam on top. Think it's gonna work well, because I really just needed the extra space to the top of the leather. If it still isn't long enough, I will only have added some extra weight, which isn't too much of a big deal with a side quiver.