[quote=shortyfox]I'm not sure you have a problem. Under the conditions which you described, assuming you're talking about the wind on your aft quarter, it's perfectly normal to have the leeward bow almost buried, especially in a 16 ft cat. The Nacra 5.0 has a lot of buoyancy, and it will more than likely go under a little and then come back up if you push it that hard. The only other thing is you mentioned you have a square top main. The 5.0 did not come with a square top so how much sail area was added with the square top? Additional sail area on the upper third of your sail may have something to do with it?[/quote]
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