I don't know why but I just don't get excited about those types of airplanes. I like Cubs, Cessnas. and Warbirds. I own a Sig Space Walker II and it sits on the bench while I fly the Mustang all the time. For some reason I am not in to aerobatic or bipes or most other sport airplanes. I like scale and I fly scale. If I built one I'd probably never fly it. Keep in mind that I am not a kid or a newbie flyer and I own my own shop and tools. Is it really that hard to build from a .60 size warbird kit? If you say so, I'll keep looking for something smaller to begin with. The .40 Mustang may be the best thing afterall since I can use my old .40 size engine and servos lying around. Sigh...