Bob, if the rest of us were sailing A cats, there wouldn't be enough room for all those late additions at the Worlds, since it is limited to a max of 100 boats. Are those late additions already -in- or are they on the waiting list?
Man, that's a lot of tallent! Should be quite a regatta, but with 100 boats on the line, how are they going to police the all important starts, to be sure the correct white hull gets called back for being over early? I hope you are going to be using a video system for help in the protest room!
The late additions we mentioned above are in and there are still a couple of folks waiting. We (USACA) are considering asking the international class to consider dropping the max entry rule and if we have to we will use split fleets or gate starts to manage the larger fleet size (like the Laser and 505 classes do respectively).
Regarding managing a 100 boat fleet, it's done often and there will be boats on either end to call OCS'ers. It won't be perfect but the RC team we have will make it as fair as possible.
It's going to be a great week of sailing!