Craig... Every other form of handicap racing puts the responsibility on the owner to get their damn boat measured for the race. Only beach catamaran world tolerates a bunch of beach bums who show up on the day of the race with a boat and expect to race without prior paperwork or registration.
Tru-dat. I had to send in PHRF measurements to the committee at least 60 days prior to needing the certificate (for a regatta).
If I did show up out-of-measurement (like a new sail not measured) I could be protested out of the race, or go Corinthian and take the hit based on any sail design change from the original PHRF cert.
