Put the flying wires on it and go nuts. I think the vertical fin is the weak point on the tail. I have a Saito 1.20 in mine and do power on blenders with it. Not adding power once the blender has begun, but pointing the nose straight down with full power, doing 3-4 rolls, anf THEN crossing the sticks. Not real kind to the airframe, but it has held up so far.