Winners in every area of life know that winning is in the details. If one could get a mathematically accurate hull from a plug with extreme accuracy in symmetry, and a true representation of the designers concept, I would say all things being equal, a "winner would seek out such an advantage. While your "average" sailor would blow it off as unimportant. Yes top sailors could win most races on a door, broom stick and sheet for a sail...but when top competitors are competing against each other they look for every advantage.

Regards,
Bob