3D?
I have the GP Ultimate and I dont think It will make a very good 3D plane. It will torque roll easily enough but that is about it. It's best maneuver is an inverted flat spin. Take it up high and push the sticks towards the antenna. The little bipe will fall right into the most beautiful flatspin you ever saw! To get it out just neurtalize the controls. Remember on landings to keep a little power on, this plane slows down FAST! It lands very easily but you need power. I have an OS .70 Surpass II on mine and it pulls it well. I would go with a .91 surpass but I have almost 1" ground clearance as it is so the only way to go bigger is a 3 bladed prop. Ill stay with the .70.
Mods:
Pinned Hinges
2 Aileron Servos (In bottom Wing)
Ohio Tailwheel
Stans Fibertech Fiberglass Cowl
THATS IT!
If you have questions feel free to e-mail me,
Phil (Mesa, AZ)