Actually, the F16 class rule do contain the limit that you may only use a single suit of sails for the duration of the event. So you can not change out a mainsail or whatever unless the SI of the event specifically overrule this and allow it. As good as always this mean in case of irrepairable damage and after a request to the RC has been made succesfully.

Apart from that, many people here should read the other regulations governing sailboat races like the ISAF set of racing and event rules and standard SI given out by local organisation. Lots of things left out of the F16 class rules are indeed regulated by these seperate set of rules.

Apart from that I don't see the (Alter Cup fear) either. I don't remember a F16 crew changing over setups at any major event like the Alter Cup qualifier. I don't recall even a single crew seriously considering it. Why are we suddenly all so afraid for something that is regulated in SI and such and that also never happened ?

Wouter