This "ownership" of names by the ISAF was discussed "to death" previously on other threads, and I think that the concensus was if a class wanted to hold a "worlds" without the ISAF's involvement, was to just call the event by another name (before the ISAF greedily claimed that new name) for example one "title" that I personally thought sounded right was "the best of the five continents titles" or "the five oceans titles" as well as many others. It seems that anyone can conduct "worlds" just as long as they don't call them "worlds" (or internationals) - pretty petty by the ISAF pareticularly since there were "worlds" long before the was an ISAF.