Now that is pretty darn neat! The only flaw I see in your story is YOU CAN NEVER HAVE ENOUGH CLAMPS! They always come in handy! But that aside, nice coaming and and I can see that with a jig saw or router (either way) you could have done a wood lip (nothing wrong with the rope). You could have cut a piece to slip over the coaming and glue it on. Or, made the coaming overly wide and router from the bottom up to have the lip. But, your method looks to be a whole lot easier. Nice work.