Thanks for the responses. Like I said, I just keep my 20 and I'm glad to have them. I've always been concerned about catching and keeping 30 in GA and then transporting them back into SC. I'd hate to have to make a case to a game warden at a traffic stop that I was fishing in GA....

Makes sense to follow the rules of the state for which you are fishing in. After all, that's what the game warden will be checking you by.