If you're going to use a full-flying elevator, I would strongly recommend that you don't use the way oversized BUSA outlines. Make it a scale size. You don't need much deflection, so why have a HUGE non-scale elevator? Personally, I also don't see the point of the enormous BUSA rudder shape. A scale size rudder will fly the model perfectly...unless of course you plan on doing knife-edge passes with your eindecker!