Ha! I laugh at you! I have one of those planes, and it is not worth your time and effort. I have a counterbalanced rudder on mine, and it'll knife-edge loop, but I don't think It'll hover too well. What motor you runnin? I got a TT Pro 46, and with a 12.25x3.75 funfly, it has unlimited vertical. If you feel the need, go ahead, but prepare to be disappointed.

Jake