I couldn't directly see these anywhere, but a few things did have me wondering.
Does the quality of a wine barrel influence anything, like, say, wine? For that matter, does anvil quality affect metal crafts?
When making a brickwall, does the quality of the clay bricks influence how strong the wall is, or is it a flat soak/HP?
When it comes to making steel, is the quality of the steel always a direct transfer from the quality of the wrought iron used in making said steel?
Lastly (that comes to mind for now), how often does decay hit? As I understand it, when trees are tapped by a 'decay' hit, they refresh branches/mulberries/apples/etc, but I have a planted mulberry tree that hasn't regained its branches or its leaves in a week - Ended up chopping it down and planting a new one, but I'm wondering what would have made it NOT refresh.