If it drops the nose to the ground when inverted resulting in needing some down to hold level then that indicates that it's biased nose heavy from the neutral point.

The dive test will show you how much it's nose heavy by how quickly it tries to rotate from vertical. Ideally for a truly aerobatic model like a CAP it should hold the vertical line or only try to nose up slowly.


.... and don't forget to pull up before it lawn darts itself....