do you have an example of a case where that doesn't make sense?
1. In dome, the floor is making me feel uncomfortable with the new sounds.
2. In airtime3, there's some metal placed on the outer edges in certain places. Impossible to make a hollow sound, since the metal is placed on top of something (a light in this case).
3. In nhb, the floor in the middle switches between 2 metal textures. Kinda weird to have different sounds there.
4. In hca_fort, there's tread everywhere. Sometimes the hollow sound fits, sometimes it doesn't.
The sound's not bad, it's just that you hear it from wrong places.