Finally got around to putting this FlisKit together. The rotor blades are a little delicate, have to be careful when sanding the airfoil section and re-glueing after splitting. Not finished with the elastic and tension cords yet and the wire retainers/clips. I need to make a MMX sized display mount, the entire engine mount tube is sitting inside a 13mm display stand I made for another rocket. One deviation from the instructions: I wrapped a strip of cardstock around the upper portions of the hinges after wrapping them with the chute cord. I recently finished a (SEMROC) gyROC, I guess I am on a helicopter kick for now.