I am teaching myself to hover with a foam factory Edge 300 powered by an Axi 2212/34.
Problem is that when vertical, the left wing alwys seems to want to drop or a lot of right rudeder is required to keep it straight. In other words that plane wants to turn anticlockwise on the vertical plain. One more clue is that underpower it flies straight and true with quite a bit of right aeleron trim. When it speeds up in a dive it tends to want to lift the nose and arc upwards.

My thoughts are that my thrust angles on my motor are not quite right, perhaps I should give it a bit of right and up thrust? Also, with the battery in place, on the left side of the fuselage it seems a bit heavier on that side, so maybe a bit of weight on the right wing tip?