Anyone had the Mallard out on the water yet? When I was initially looking at the design I was worried that the V-hull would force water directly into the prop during water taxiing. It looks like I was right! I took her out on the water last week and sure enough - right into the propellers! I changed the 9" prop to an 8", but it made very little difference.
So now I'm adding foam to the hull to make it flat. I should be ready for water-taxi trials again soon. Keep you posted... with pictures.