Hey Guys,
What makes a fast boat and a boat that sails easy and smooth is BALANCE and COORDINATION of the parts that make up the system. You can't simply add sail area and have a boat that sails well. If it is a board boat, you have to go up in board area with increased sail area. If it is a boardless boat, the best you can do is rake the mast back and go up in rudder area with increased sail area. Think balance and coordination of the whole system. That makes a fast boat.
Good dreaming,
Bill