Tried to firm up the trailing edge of the right wingtip. Put some tape around the leading edge with no change. Also tried a couple different straps to secure the trailing edge of the hinge. Installed both with no better result. Decide to begin work on the left wingtip with the idea of using screws on the bottom of the wing and see if this keeps the trailing edge from moving. Began trimming the edge of the left wingtip to fit the left wing. Installed left wingtip to check fit and align with aileron. All geared up for flying fiberglass dust.