Somebody help me here, In a mag a while ago, there was an article about some builder (Florida panhandle?) that shaped her hull at the stern to back down and maneuver at some great speed. Think around the 45' to 50' area. They did loose SOME forward performance due to the hull design and some losses because they used smaller engines to lighten the weight in the stern. From what I remember, it she went half as fast backward as forward.