I knew the first one, but never thought about sappers.Villagers get the hill bonus when "attacking" trees. This means it takes 2 hits downhill (yes even for Tatars) or even and 3 hits uphill to start collecting from the tree.
With Sappers trees always die to 1 hit.
Yes. Supremacy for Spanish Villagers should also have the same effect for most trees.Wait so is sappers the secret final wood upgrade we have been missing all along?!