Continuing with the Super Stearman, I attached the wingtips. They are plywood extending way inward. They are slotted to accomodate the last rib, which has an upper and lower half fit together thru the slots in tip. It's OK, but the designer decided to stop the main spars one rib short so the tip is very flexible. The more I work on this kit, the more I feel it was designed by someone with good cad experience and not so good design experience. The split landing gear with low grade al is another example. I ordered the heavier legs from a supplier listed above. It's easy to be a critic and a lot harder to come up with something. But for the money charged I expect a good design. Doesn't always happen. The parts do fit together, as expected from a CAD generated plan.