I like my planes slightly nose heavy, they fly better in windy conditions....but not too nose heavy....also on maiden flights i try to place the battery(s) as far forward just to get a feel for the plane then make adjustments.... For example i have 1.20 yak55 and maidened with the battery strapped to motor box, and it would not slow down and was "stally" so i ended up mounting it in the turtle deck area, now it lands like a trainer