ORIGINAL: Gray Beard
I cover my wings and ailerons with one piece of covering so I have no gap, most the time. It's an old habit I got into, not only does it seal the hinge gap it makes clean up easier. It's not for everyone though but I have been doing it for a lot of years.
So I can understand your method. Do you hinge the ailerons first, or just use the covering as the hinge??