"Are you trying to argue that a one up F16 sails slower in the US than the rest of the world - obviously not, so I'm not sure why you're so eager to dismiss evidence from outside the US that the F16 formula produces performance that for all reasonable intents and purposes is equivalent across configurations (which is the issue, right?)."

What part does local area wind speeds come into play? Does the uni fair better in higher winds? Or is it pretty much the same? If it does perform slightly better in higher winds wouldn't that account for differing results, say between Australia/Europe and the South East US?

Regards,
Bob