Yes... the data set is too slow to be generated and the pool of sailors too small to generate an acceptably fair number. Since the principles that a portsmouth system depends on are not valid... you need another solution. You could just make up a rating like PHRF and then go from there... or you could use the measurment rule until the conditions change and you have met the criteria.

This is my solution to balance the reality on the ground with the ability to implement it.

I must say... it sounds like a nightmare trying to re measure every F18 and certify that the equipment that an X brand of F18 now has... is what all of the other F18's of t brand X also has.

Or will everyone have to have their boat's measured to go racing?