Without reading through the whole post; does anyone know where to get a set of flat bottom plastic blades for the cp? I got a set with mine that have no markings on them and would really like to find a spare set. They are not quite indestructible, but close enough for garage flying. The wood blades are ridiculously fragile when meeting a shovel handle. These white plastic ones take a beating and syill fly fine..........thanks, Mule