After the tips were clecoed in place, I worked on the trailing edge and it's fit. With the ailerons in neutral, the tips should be faired with the aft edge of the ailerons. Both tips were about 1/4 to 1/2" off. I decided to split the aft seam of each wing tip, and did this with a small hacksaw. Then I epoxied the two sides of the trailing edge together in the proper position and clamped to dry.