I notice the torque tube blocks that you rivet to the aft spar have a short and long side to them, I'm pretty sure the short side goes up to match the torque tube blocks on the front spar, the illustration doesn't show very clear which way they are installed, is the torque tubes supposed to be level once they are in place with the spars laying on the saw horses, and also the torque tube block on the front spar back side under the wing root, it is also longer on one side and the illustration isn't clear on that one, , just want to get it right before i rivet these blocks to the spars. any help? Thanks