ORIGINAL: Tmoth4
I was thinking...If you hinged the ailerons at the top and covered over the gap with the covering, the ailerons wouldn't be so noticable and it might look more realistic.
The small 1/6 scale EIII from AerodromeRC uses a thin full-span barn-door type aileron hinged with fabric at the top. So the effect looks very much like wing warping. BTW, a clubmate came up with a very inventive solution on this own-designed sport-scale EIII. He had servos in the fuselage that actually rotated the two wing panels in opposite directions! I'm not recommending this, especially not for a 1/3 scale model, but it just goes to show there are many ways to skin a cat.