I haven't ordered the Avistar floats yet but a friend just received his with floats so I will be looking them over for build quality. Wow four 1/4 scale Cubs, my first full scale was a 1941 Cub with a full restoration. In retrospect that was the most fun flying of all the airplanes I have had the good fortune to fly/own even if the semis would pass you up in a headwind. I have been thinking about a VVRC 40 in something like a Cub/PA18 on floats. Which PA18 are you putting it in?