Well I made the mistake of buying a less than reputable brand warbird for my first build, so the already shotty Manuel didn’t come with a cg location. Not knowing the proper cg point, I improvised by looking at a different brand, but same size and identical model, cg point. Well what’s really odd is it takes about 10oz of counter weight at the very rear of the plane to get the correct "hypothesized” cg. I was just wondering if that much weight is just insane since it seems to me adding quite a bit of weight to the plane. Oh and this plane is and fu4 corsair .50 size being powered by an evo 1.00 nx, this is the airframe I bought http://www.nitroplanes.com/f4ucorsair5055.html .