I had a brison 3.2 on mine, and loved it. Plenty of power! If you set up your aileron with good harware, free of slop, and use good metal geared servos, you will not have a problem, as long as you know what throttle managment is. To much speed will kill most airplanes. The bigger the airplane is the slower in the air it looks. A small 40 size airplane looks fast until you put up a slow looking 33% plane. If you try to fly the same oval the bigger you will see it is just as fast, or maybe faster. The DP extra is a good airplane, but be careful to get a good mechanical setup. Big airplane are less tolerant of inferior control setups imo.