"While we are working our butt of to get our Nacra Inter 18 to a small 20 knots, I look at video's of Infusions and see them going to 30 knots as if its very easy..."


Where is this video? There's no way any beach cat was doing 30 knots, unless it fell off the trailer going down the highway! From what I've seen and experienced, to get over about 20knots, you've got to get both hulls out of the water, ie. foiling.