[QUOTE=Hydro Junkie;12170721]I don't know how much you know about hydroplanes but many of the boats have steps or recesses in the running surfaces to reduce the affect of water along the skin. These areas break the water's hold and allow the boat to plane much easier. These can be seen on the picture of the Oberto unlimited hydroplane shown below:
/QUOTE]
Some hydros have stepped sponsons and/or center tubs, but this design is proven to be fast without any steps in the keel (65.1mph). In reality, given the weight of the hull, I'm not sure I would want it that much faster anyway. They tend to go airborne.
Just to add; the plywood "step" sheets are 1/32" thick and have been sanded smooth and is awaiting a final full sheet of skin sheeting. Unfortunately this project is on hold due to having to move to a new house.