Long before most of you were born, I spent some time in the mold loft at Goudy and Stevens with the loftsman who laid down the lines for the Schooner America. He explained to me how all yacht designers draw sheerlines improperly and how he always had to fix them on the loft floor so they wouldn't have to either extend the stemhead or reduce the freeboard in the forward quarters when ribbanding off the sheerline for checking the fairing by eye.
The process is describe in Chapelle's Boatbuilding but described as only applying to full bowed motor yachts of the sport fisherman type. It actually has to be applied to every sheer line if the design is to be constructed exactly as built without looking lifeless or having the distressing hump seen on the majority of boats wood and glass.
I've been away from wooden boats for almost three decades now and haven't been looking at many plans. Has this principle become common knowledge in the meantime? I'd be glad to explain it but I don't want to beat on something that has become a dead horse.