I worried about it too, but finally decided to cover mine after gluing the wing and stab in place and it turned out to be pretty easy. In fact, I covered each fuselage side, including the fin, with one big piece of covering that had a hole cut it it to slide down over the wing. I used Ultracote for the first time on my Fun51 and I think that helped. Just iron strips of covering in the angles where the wing/fuselage and stab/fuselage meet first and the rest is easy.