I say leave it like it has been.Some good folks on here that either live out of state and are members or are members from within the state that travel around and hunt other states. It's worked well in the past. Need all the participation you can get.
This is a decision that should be made by the judges of the competition. If they so chose to make it a vote, the vote should be by only those who are in the challenge.
If expand outside GA I think definitely needs to be eastern only (so they score comparably) and still need a maximum number of birds allowed per person (and 3 makes sense since that's the limit in Georgia).
Any thoughts on extra credit if shoot with a bow (sorta be hard to enforce, but that's definitely on my "To Do" list this year).