Mapping OX Length and OX Render Settings with the same or similar map should work well. You need to control both the length and thickness to get a more "scaled" result. If you use proxy objects you should be able to control the scale with just the OX Length map.
Michael, one other thing, why do some feathers render with some weird twist while it looks fine in the viewport? I have set the viewport amount the same as the render amount, so it should render like the viewport. Menno
