Go buy an API and you won' t have to worry about that. Also, you won' t have to worry about the awful noise the summits make when you are hunting persimmon trees. I personally think it' s tough enough to narrow down the right tree without narrowing the search with the size of the tree and the type of bark etc. If it' s a tree and it' s in the right place and it' s anywhere from as big around as my calf to too large to reach around, I can climb it and my stand is quiet. I don' t give a damn what kind of bark it has.