Nativeman:
Ok I'll admit I was very skeptical about boats being on the dam in the first place, But the two occasions I have been there now and I am talking Hamons Cove. I have seen 5 trailers in the car park and out on the water only saw one boat. So the boats will have little effect on the top of the dam in relation to kayakers or sail boats. So there will be plenty of water for all craft.
I have since bought a second hand boat and I am looking at upgrading as its not good enough for the princess. I would like to buy a Clitrex but sh!t they're dear, now looking at a Stessco..