I know that the full size Corsair has the vert stab off set. There was talk of this on some other thread some time back. I think this is one of those scaling questions when you get down to size of air molecules and airspeed, p factor and such. Why take the chance? It is something that even most serious scale guys and judges wont notice and if it is that noticeable....it is probably way to much. If you should decide to do it, you can always trim it out with the trim tab (scale) or with rudder trim which we currently do. So whatever you decide to do, keep us in the loop