Blade47 documented an excellent build thread of the 2/60 kit but on the maiden flight the stabilizer broke off in-flight. He miraculously saved the plane but one nacelle separated with a clean break when it crash-landed. Although this is a larger plane than the 2/40 it helps illustrate a couple of potential weak spots in the design. Substituting spruce for the trailing edge of the stabilizer might be wise insurance!

Mike