dad put the first half of his wing together very well. It is zactly to plan. Now he has put together the other half of the wing and the tip of one wing sits 3/8 of an inch higher the the other. What will be the effect of the plane, he has already glued the spar ribs in and all together, so taking it apart and regluing it will be a nightmare. maybe we can flex it with heat or steam. maybe bend it when we get covering on it?? sombody please help