I disassembled the Stall Warning SubAssembly because the microswitch did not click with movement of the Vane when the MidWing Skin was installed. Straightened the Vane because it appeared tilted to one side. Also filed the aft part of the Vane to smoothen the surface where the bolt enters to allow it to rotate more freely. Reassembled the Stall SubAssembly and had another difficult time counting the washers and making sure they were of the right thickness. Needed a magnifying glass to see the washers clearly.