We Want Wave Clearance Clarence

This Hawaiian 45' racer built by Bill Rosehill in Hawaii illustrates a good way to get those crossbeams raised above the top of the waves.  This arrangement is commonly seen in Tahiti but not much in Hawaii except for the canoes converted to sailing.  Note the shimming to tune the ama height.
This 175 lb cedar strip/fiberglass hull would be hard to improve on even with a big pile of carbon and honeycomb.  Strip composite can result in a lighter hull than most plywood designs provided that your techniques are good.  As Burt Rutan used to say:  "That excess resin that you squeegeed on to the floor will do a lot more good there than on your airplane."