Just for grins.....why not set your ailerons where they are supposed to be (in-line with the center line of the wing chord)...? If you want flaps or its effects - why not just add flaperons to the mix.....?

Adding down thrust to your engine would be a good place to start to counter act the plane wanting to climb at higher throtte levels and then go from there. It's kind of a process of elimination........

Good luck!