My Blade has the deep boards and I race against guys who have the short, wider boards as you have. I have noticed that I will fly a hull earlier than they do in the same wind.

But I also fly the hull too much when the wind comes up, and have to lift my boards up a bit when it's blowing hard, just to keep from flying the hull too high. I also have to pull them up half way going downwind in a blow to keep from stuffing the bows in a good gust. I'll bet that is why the Viper was flying the hull sooner.