I just built my Seamaster .40. It took me about 8 hours or more to finish it. I had some quirky trouble with throttle linkage and Nyrod kinked on me feeding it through a sharp angle. Other than that, this kit was very well made and I am impressed. The parts were well cut and finish was ..ok. It had some big wrinkles in the monokote, but an iron and 10 minutes and it looks great. Thanks to all who helped me with my first Seaplane and my 1st 4 stroke as well. She runs great, test flight,taxi, and fast taxi come in a week and a half...wahoo. Thanks.