Ive been flying my ARF LT-40 for 2 months now, I have a LT-40 kit that I built but its very tail heavy.
To have it perfectly balanced I have to add 1 pound of lead to the very front under the tank. Both of the planes have the same exact radio setup and O.S. 46LA's. The kit plane struggles with the 46 engine and the ARF plane flys fantastic. Why did my ARF balance out perfectly after complete assembly but the kit plane was so tail heavy ?
does anyone have an idea on how to fix this?

Thanks, Chris