I just made the first flights on the .60 size ARF. Required a LOT of aileron trim. I got it on the ground and got to looking at it with a friend and the wings are warped at the tip..1 up, 1 down such that much trim was required. Gotta take the heat gun to it and straighten it out. Power will not be an issue with a Saito 4C....airborne at 1/2 throttle. With Saito required 9 oz of weight in the nose...total weight is a shade over 8 lbs.