so why do you think the regional A-cat fleet is distancing themselves from EMSA events? Do they have different needs than the rest of the multihulls attending?
From what little I know of the A-cat fleet, they use similar W/L courses, and while they don't have a spin, they are certainly similar in performance to some (but not all) other fleets. Their boat logistics (setup, trailer, etc) are similar, so the beach/launch areas would be similar as well
Having their own start seems logical, but I suspect that's still not enough to keep their interest in non-exclusive events?
Conversely, is the A-cat fleet using better venues than some of the established EMSA sites? Would they welcome non-A-catters to some of their regattas if there were RC/PRO assistance from those non-a-cat fleets?
It should be pointed out that they have 6-7 boats on one trailer so they establish a fleet anywhere they go. That allows them to travel more easily on pooled resources. Because of that I'm sure they don't have much interest in racing anyone on handicap. So they will travel more to seek better A class racing