Yep, and you can counteract the adverse yaw by making the up aileron deflect more than the down aileron. Whereby the up aileron is casing drag due to it's large deflection and the down aileron is not causing as much due to it's small deflection. Like I said before, this ratio is as high a 4:1 on a glider operating at very high C of L. Now, fly this plane at negative AOA (inverted) and what happens? The up aileron deflects a small amount and the down aileron deflects a large amount. The result is severe adverse yaw.

For aerobatic planes, you're going to have to use the precision trimming techniques posted on other sites.