Originally Posted by silver.kiwi

It seems that every one requires adding some weight and the pull/pull rudder system helps because it moves the rudder servo forward. I even moved the throttle servo forward alongside the fuel tank on the right side and the battery on the left side of the tank. Even doing that I. still needed to add 14 oz. of lead under the OS 120 Surpass for proper CG location. After all that I still love the way the plane flys. It is one of the most stable, predictable aircraft I have flown and has plenty of excess performance to do any aerobics I am capable of asking it to do. Fear not, you're going to like it unless you are into extreme 3D. I am not.