It always takes longer to build than the instructions say, that is if you take the time to CA every hole, and take the time to trim back the Monocote at the hinge area, and drill the hinge area, and reinforce the fire wall, and epoxy cote the fire wall, and iron out all the wrinkles, and reinforce the landing gear, and it goes on and on. However every little thing you do to improve your plane only extends the expiration date, and believe me they all have one.