hi guys,when i fly my pizzaz,the tail looks lower than the front.the cg is 3.5 inches from the leading edges.is it ok to balance the plane upside down,and when i take off,the tail wheel always stay on the ground,help please,thanks guys.

I have no idea what the recommened C.G. on this airplane is but that is definatly a tail heavy trait. You should be balancing this airplane upside down with no fuel in it. If it is too far behind the C.G. then move your battery pack, dont add weight, weight = death.

Mine does that a little but not to that extreme. Are your ailerons centered with the centerline of the wing?
You could have some flap or spoiler in the ailerons and not know it. Is it the same at full power and at half power? later daveo