Hmmm, Pete I worked on the Alter Cup, pretty much everyday since setup day. I dont recall any of the F18 gurus complaining about the F16 switching crews etc.
The rating has changed to a single digit, so honestly do not think it should be a big deal.
And yes I was referring to single events. Not all the racing. Register in an event as a UNI and sail the entire event as a UNI, if not risk getting protested. The hardware rules cover this issue. Single suit of sails authorized for the reminder of the event. The rules also state that if you sail single handed you go without a jib, and double handed you go full suit. So if you dump your crew one day you are in fact breaking an F16 rule.