I totally agree with you Bill.

Rajul, As Bill said, the gap on an airplane this small will have a much greater effect than it would on a larger plane. Now take into consideration the fact that you may have a tiny difference between the gaps on each aileron. These gaps may have no effect whatsoever on how your plane flies. On the other hand, they might have a major effect. So the way I see it, by simply applying a strip of tape or covering, you are removing this factor. Now, if your plane acts "funny", that's one thing that you don't have to suspect.