One last question, how do you know it was waves slapping against the
swim
platform (waves travelling against the wind) and not just the boat
slightly
rocking and creating slapping noise due to poor aft end design?


Because another boat was with us and our boat was moving less. Our
dinghy was moving more. A Catalina with a swim platform also "slaps."
As does my friends Tayana 48 at times.
Sorry, you failed again!



RB
35s5
NY