Oh I've heard the same things go on, on a much smaller scale, with Cats too. The dealer gets in a shipment and then they start weighing each hull before they put together a 'light' boat, or a 'stiff' boat, etc.
If they had 200 hulls to chose from, it would take them awhile, but I have no doubt an Olympic Hopefull would spend the time to get it right!
Personally, I'll spend that time on the beach, drinking.