Hi Rob,

I'm glad to hear of the enjoyment that you are getting from your AB3. I have the predecessor, the AC, which was a great plane for me for several years. Toward the end of my cycle with this plane, I converted the tail to make a ProTail. It basically doubles the surface area of the control surfaces, making the plane much more responsive to your control inputs. If, and when, yoj are ready to try a ProTail, you make the modification by filling in the gap between the control surface and the sationary surface with epoxy and reinforcing the fill with packing tape that has fiberglass reinforcement. You then cut a new slot toward the front of the tail, causing the entire tip to become part of the control surface.