BTW, I don't think those SIs are especially terrible (I've seen similar ones that worked out just fine), but they sure could be simplified. My preference is separate division appendices (one set of course diagrams for each circle, inlcude only what the sailors on that circle need to know for sailing on that circle).

And, all of my "posturing" about who's fault it is if a change is made correctly, and sailors fail to pick up on it really was just to illustrate some rules issues.

At any regatta, if the RC has done everything by the book and the sailors are confused, the RC probably won't be invited back, or that fleet may not return. Part of our job is communication and training; those things are just as important as setting a fair course.

Mike