How about a rally on the west coast, a rally on the east coast and one half way between? And alternating each?
This would make it possible for the westerners to show up easily to the west coast rally or a mid-country one.
A mid-country rally easy for the west or east coasters and lastly, if the rally was on the east coast, the easterners and the mid-westerners would be able to make it ....
How much easier could this be??