Yes, the two aluminum tube spars were reinforced with carbon fiber spars full length inserted and hysoled into place. All control service hinged with Robart hinges place 1" apart. Hysol applied to all joints that could be reached. Install slightly larger nose and main wheels with air brakes on mains. Still took 3.0oz of lead in nose to correct CG. Yes, the additional power is amazing for take offs from our grass runways. Yes, throttle management is necessary but it has unlimited vertical.