But with the Stits process wings, fuggedaboudit. Buy the tool. On Don Zank's advice, I cut the rootend top and bottom sheeting in half to a width of three inches to save some weight and material. But I've since found that it's really useful to have this sheet stock around for other aspects of the project. I've used it for additional bracing for the fuel tank box, the nav light mounts, all sorts of things.
Mistakes often seem to have a way of being useful in some other way.
Of course it's easy to keep that perspective as long as the part I've ruined isn't too expensive. Education is seldom cheap. Both the wing and the aileron frames are on a flat surface. Hinge positions have been marked on the wing rear spar per the drawings and the hinges have been temporarily fastened to the wing spar with two aluminum rivits. I did find that the hinge spacing in the manual will land one of the middle hinges on top of an aileron rib.