I have no place really in this but I have thought about joining both. The arguments between the two don't matter to me a bit. I know that both in thier own right are working to preserve the art/sport.
But logic suggests that one club or organization, with members working together, consolidating funds and focusing on the big issues that plague the sport/art would be more successful. Instead of two clubs picking thier own issues. What matters is the preservation of falconry for those active in its presuit and the ones that will build the future.