Scott, Me thinks that you don't give your boat enough credit. I remember a few years ago in Passagemaker Magazine, a retired pilot described going through a knock down in a 48' Krogen Whaleback. I don't think the knock down was more than about 70 or 80 degrees; but aside from being scared, not much happened. Ironically, I think the name of the boat was the Wright Whale. I don't know what the A/B ratio of the Whaleback is, but for the 48' North Sea, it is 2.6 and the Whaleback is sure to be higher. The A/B ratio for your boat is 2.3 (the same as the N46), lower and probably more stable than the Krogen. The A/B ratio for the N50 is 2.1, the lowest of the Nordhavn fleet. When I bought my N50 seven years ago, Ray Danet (who now runs the East Coast office for PAE) had access to more information that indicated that the N50 would be self righting in all positions except within about 20 degrees (or so) of being completely inverted. The bottom line here is that I think ANY of these ocean going boats that we're talking about are probably far more capable of withstanding harsh conditions, be it a knock down or even a rollover, than their occupants or contents. Phil Eslinger Flat Earth N50