Congrats Chad! Dude, where did you get the gray hair, you get it counting rivets?

I get to do my longerons for the second time now! Don't Ask, lol
Wish I had built your tool the first time and I would be all set.
Oh well, it's only aluminum

I had exactly the same problem. When the assembly was just clecoed together after match drilling etc., there is a gap between the wing skin and leading edge skin. After I dimpled and riveted it together the gap closed up and fits excellent.

YMMV