Yes, as Bruce said, turn on radio and center the trim.

Next, I would discard the 4 point servo arm you are using to a 6 point arm.

Place it on the servo. If the arms don't line up properly, rotate them to the next position. eventually, they will line up (If not perfectly, at least they will be very close. (You can see that on yours, angle "A" should be straight across)

Next, you need to bend the torque rods so that they are even with each other, not angled like "B" in the picture.

Then, connect the pushrods to the two servo arms that are away from the ailerons (The two pointed out for "Top Wings" in the picture)