There is a balance-discussion where I have proposed some changes to the yields from the plantation-resources in order to make them feel more interesting and less samey. The discussion is going on in a thread in the General Balance Subforum, but since no one seems to find their way there I've been asked to re-post it here. I am however not going to do that, because I really don't like disorder, and that's a topic that is supposed to go into general balance. So I'm just going to give you a link to it instead. You can find the thread here.